COMPAQ COMPUTER CORP
S-8, 1997-12-31
ELECTRONIC COMPUTERS
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<PAGE>   1
    AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON DECEMBER 31, 1997



                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                               ------------------

                                    FORM S-8

                             REGISTRATION STATEMENT
                                      UNDER
                           THE SECURITIES ACT OF 1933

                               ------------------

                           COMPAQ COMPUTER CORPORATION
             (Exact Name of Registrant as Specified in Its Charter)

           Delaware                                      76-0011617
 (State or Other Jurisdiction of                        (IRS Employer
 Incorporation or Organization)                       Identification No.)

            20555 S.H. 249
            Houston, Texas                                  77070
 (Address of Principal Executive Offices)                 (Zip Code)


                               ------------------

              Tandem Computers Incorporated 401(k) Investment Plan
                            (Full Title of the Plan)

                               ------------------

                                J. David Cabello
               Senior Vice President, General Counsel & Secretary
                           Compaq Computer Corporation
                                 20555 S.H. 249
                              Houston, Texas 77070
                     (Name and Address of Agent for Service)

                               ------------------

                                 (281) 370-0670
          (Telephone Number, Including Area Code, of Agent for Service)


                         CALCULATION OF REGISTRATION FEE
<TABLE>
<CAPTION>
============================================================================================================
      Title of                                    Proposed              Proposed
     Securities              Amount               Maximum               Maximum
        To be                 to be            Offering Price          Aggregate             Amount of
   Registered (1)          Registered            Per Share           Offering Price      Registration Fee
- ---------------------- -------------------- --------------------- --------------------- --------------------
<S>                    <C>                  <C>                   <C>                   <C>
   Common Stock of     
   Compaq Computer       370,000 shares           $53.6875            $19,864,375             $5.860
     Corporation
============================================================================================================
</TABLE>


(1) Estimated solely for the purpose of calculating the registration fee
pursuant to Rule 457 based upon the average of the high and low prices of the
Common Stock reported in the New York Stock Exchange consolidated reporting
system on December 26, 1997.



<PAGE>   2


                                     Part II

               Information Required in the Registration Statement


Item 3. Incorporation of Documents by Reference

         The following documents have been previously filed with the SEC and are
incorporated by reference into this Registration Statement:

         1. Compaq's Annual Report on Form 10-K for the year ended 
            December 31, 1996;

         2. Compaq's Quarterly Reports on Form 10-Q for the quarters ended
            March 31, 1997, June 30, 1997 and September 30, 1997;

         3. Compaq's Current Reports on Form 8-K as filed on October 16, 1997
            and November 21, 1997;

         4. The description of the Compaq's common stock contained in
            Compaq's Registration Statement on Form 8-A; and

         5. The Plan's annual report on Form 11-K as filed on December 31, 1997.

         Compaq is also incorporating by reference additional documents that we
may file with the SEC between the date of the Prospectus to which this
Registration Statement relates and the date of the filing of a post-effective
amendment which indicates that all securities offered have been sold or which
deregisters all securities then remaining unsold.

         Copies of the documents incorporated by reference above may be obtained
from Compaq without charge, except the exhibits (unless we have specifically
incorporated by reference an exhibit in this Prospectus), by writing to:

                  Compaq Computer Corporation
                  20555 SH 249
                  Houston, Texas 77070
                  Telephone: (800) 433-2391
                  Attention:  Investor Relations


Item 5.  Interests of Named Experts and Counsel.

     The legality of the common stock offered by this Prospectus has been passed
upon for Compaq by Linda S. Auwers, Vice President and Associate General Counsel
of Compaq. Ms. Auwers has options to purchase Compaq common stock and owns
shares of Compaq common stock as a participant in an employee benefit plan.

<PAGE>   3

Item 6.  Indemnification of Directors and Officers.

         Exculpation. Section 102(b)(7) of the Delaware General Corporation Law
(the "DGCL") permits a corporation to include in its certificate of
incorporation a provision eliminating or limiting the personal liability of a
director to the corporation or its stockholders for monetary damages for breach
of fiduciary duty as a director, provided that such provision may not eliminate
or limit the liability of a director for any breach of the director's duty of
loyalty to the corporation or its stockholders, for acts or omissions not in
good faith or which involve intentional misconduct or a knowing violation of
law, for the payment of unlawful dividends, or for any transaction from which
the director derived an improper personal benefit.

         Compaq's Restated Certificate of Incorporation limits the personal
liability of a director to Compaq and its stockholders for monetary damages for
a breach of fiduciary duty as a director to the fullest extent permitted by the
DGCL.

         Indemnification. Delaware law permits a corporation to indemnify its 
officers and directors under any circumstances.

         Compaq's Bylaws provide for indemnification of directors and officers
of Compaq against liability to the fullest extent permitted by applicable law.

         Insurance. Compaq has in effect directors' and officers' liability 
insurance and fiduciary liability insurance.

Item. 8  Exhibits

Exhibit No.
- -----------

 4.1    Tandem Computers Incorporated 401(k) Investment Plan.

 5.1    Opinion of Linda S. Auwers, Vice President and
        Associate General Counsel of the Company, as to the legality
        of the securities being registered.

23.1    Consent of Linda S. Auwers, Vice President and
        Associate General Counsel of the Company, is included in the
        opinion filed as Exhibit 5.1 to this Registration Statement.

23.2    Consent of Ernst & Young LLP, Independent
        Auditors.

23.3    Consent of Price Waterhouse LLP, Independent Accountants.

24.1    Powers of Attorney are included on the signature page of this
        Registration Statement.

<PAGE>   4

Item 9.  Undertakings.

         Compaq hereby undertakes:

         (1) To file, during any period in which offers or sales are being made,
a post-effective amendment to this Registration Statement to include any
material information with respect to the plan of distribution not previously
disclosed in the Registration Statement or any material change to such
information in the Registration Statement;

         (2) That, for the purpose of determining any liability under the
Securities Act of 1933, each such post-effective amendment shall be deemed to be
a new Registration Statement relating to the securities offered therein, and the
offering of such securities at that time shall be deemed to be the initial bona
fide offering thereof; and

         (3) To remove from registration by means of a post-effective amendment
any of the securities being registered which remain unsold at the termination of
the offering.

         The undersigned Registrant hereby undertakes that, for purposes of
determining any liability under the Securities Act of 1933, each filing of
Registrant's annual report pursuant to Section 13(a) or Section 15(d) of the
Securities Exchange Act of 1934 that is incorporated by reference in the
Registration Statement shall be deemed to be a new Registration Statement
relating to the securities offered therein, and the offering of such securities
at that time shall be deemed to be the initial bona fide offering thereof.

         Insofar as indemnification for liabilities arising under the Securities
Act of 1933 may be permitted to directors, officers and controlling persons of
Registrant pursuant to the provisions described in Item 15 above, or otherwise,
Registrant has been advised that in the opinion of the Securities and Exchange
Commission such indemnification is against public policy as expressed in the Act
and is, therefore, unenforceable. In the event that a claim for indemnification
against such liabilities (other than the payment by Registrant of expenses
incurred or paid by a director, officer or controlling person of Registrant in
the successful defense of any action, suit or proceeding) is asserted by such
director, officer or controlling person in connection with the securities being
registered, Registrant will, unless in the opinion of its counsel the matter has
been settled by controlling precedent, submit to a court of appropriate
jurisdiction the question whether such indemnification by it is against public
policy as expressed in the Act and will be governed by the final adjudication of
such issue.



<PAGE>   5


                        SIGNATURES AND POWER OF ATTORNEY

         Pursuant to the requirements of the Securities Act of 1933, the
Registrant certifies that it has reasonable grounds to believe that it meets all
of the requirements for filing on Form S-8 and has duly caused this Registration
Statement to be signed on its behalf by the undersigned, thereunto duly
authorized, in the City of Houston, and the State of Texas, on this 31st day of
December, 1997.

                                   COMPAQ COMPUTER CORPORATION


                                    By:      /s/ J. David Cabello
                                       ----------------------------------------
                                       J. David Cabello, Senior Vice President
                                       and General Counsel


<PAGE>   6


                        SIGNATURES AND POWER OF ATTORNEY

         We, the undersigned officers and directors of Compaq Computer
Corporation, do hereby constitute and appoint Eckhard Pfeiffer, Earl L. Mason
and J. David Cabello, or any one of them, our true and lawful attorneys and
agents, to do any and all acts and things in our name and on our behalf in our
capacities as directors and officers, and to execute any and all instruments for
us and in our names in the capacities indicated below, which said attorneys and
agents, or either one of them, may deem necessary or advisable to enable said
corporation to comply with the Securities Act of 1933, as amended, and any
rules, regulations, and requirements of the Securities and Exchange Commission,
in connection with the Company's registration statements on Form S-8 regarding
the Compaq Computer Corporation Deferred Compensation and Supplemental Savings
Plan, including specifically, but without limitation, power and authority to
sign for us or any of us, in our names in the capacities indicated below, such
registration statement on Form S-8 and any and all amendments thereto; and we do
each hereby ratify and confirm all that the said attorneys and agents, or either
of them, shall do or cause to be done by virtue hereof. The following persons
executed this power of attorney in the capacities and on the dates indicated
below.

         Pursuant to the requirements of the Securities Act of 1933, this
Registration Statement has been signed by the following persons in the
capacities indicated below.

<TABLE>
<CAPTION>
Signature                           Title                                             Date
- ---------                           -----                                             ----
<S>                                 <C>                                        <C>
/s/ Eckhard Pfeiffer                President, Chief Executive Officer          December 31, 1997
- ---------------------------         and Director (principal executive
(Eckhard Pfeiffer)                  officer)


/s/ Earl L. Mason                   Senior Vice President and                   December 31, 1997
- ---------------------------         Chief Financial Officer (principal
 (Earl L. Mason)                    financial and accounting officer)


/s/ Benjamin M. Rosen               Chairman of the Board of Directors          December 31, 1997
- ---------------------------
(Benjamin M. Rosen)


/s/ Lawrence T. Babbio              Director                                    December 31, 1997
- ---------------------------
(Lawrence T. Babbio)


/s/ Robert Ted Enloe, III           Director                                    December 31, 1997
- ---------------------------
(Robert Ted Enloe, III)


/s/ George H. Heilmeier             Director                                    December 31, 1997
- ---------------------------
(George H. Heilmeier)


/s/ George E.R. Kinnear II          Director                                    December 31, 1997
- ---------------------------
(George E.R. Kinnear II)


/s/ Peter N. Larson                 Director                                    December 31, 1997
- ---------------------------
(Peter N. Larson)
</TABLE>

<PAGE>   7
<TABLE>
<S>                                 <C>                                        <C>
                                    Director                                    December 31, 1997
- ---------------------------
(Kenneth L. Lay)


/s/ Thomas J. Perkins               Director                                    December 31, 1997
- ---------------------------
(Thomas J. Perkins)


                                    Director                                    December 31, 1997
- ---------------------------
(Kenneth Roman)


/s/ Lucille S. Salhany              Director                                    December 31, 1997
- ---------------------------
(Lucille S. Salhany)
</TABLE>




<PAGE>   8




                                  EXHIBIT INDEX

Exhibit
- -------
 4.1    Tandem Computers Incorporated 401(k) Investment Plan.

 5.1    Opinion of Linda S. Auwers, Vice President and
        Associate General Counsel of the Company, as to the legality
        of the securities being registered.

23.1    Consent of Linda S. Auwers, Vice President and
        Associate General Counsel of the Company, is included in the
        opinion filed as Exhibit 5.1 to this Registration Statement.

23.2    Consent of Ernst & Young LLP, Independent
        Auditors.

23.3    Consent of Price Waterhouse LLP, Independent Accountants.

24.1    Powers of Attorney are included on the signature page of this
        Registration Statement.




<PAGE>   1
                                                                     EXHIBIT 4.1







                          TANDEM COMPUTERS INCORPORATED
                             401(k) INVESTMENT PLAN








                    Restated Effective as of January 1, 1993


<PAGE>   2




                          TANDEM COMPUTERS INCORPORATED
                             401(k) INVESTMENT PLAN

                            (As Amended and Restated
                             as of January 1, 1993)


                                    PREAMBLE


              The Tandem Computers Incorporated 401(k) Investment Plan was
         established effective July 1, 1984 to provide Members with an
         opportunity to participate in a qualified cash or deferred arrangement
         under section 401(k) of the Internal Revenue Code. The Plan has been
         amended from time to time since its adoption. It is intended that the
         Plan be a profit sharing plan qualified under section 401(a) of the
         Code and is intended to include a qualified cash or deferred
         arrangement under section 401(k) of the Code. This amendment and
         restatement of the Plan incorporates all amendments.
                                       2

<PAGE>   3




ARTICLE I DEFINITIONS.

          1.1 Accounts: The Company Account, the Deferred Account and the
     Rollover Account, if any, to which contributions and earnings on
     contributions are credited.
     
          1.2 Actual Deferral Percentage: With respect to a specified group
     of Employees, the average of the ratios, calculated separately for each
     Employee in that group, of (a) the amount of Deferred Contributions
     made pursuant to Section 3.1, plus the amount of Company Matching
     Contributions made pursuant to Section 3.2, plus the amount of Company
     Profit Sharing Contributions made pursuant to Section 3.3, for a Plan
     Year to (b) the Employee's Compensation for that Plan Year.
     
          1.3 Affiliated Company: A corporation, trade or business which is,
     together with any Company, a member of a controlled group of
     corporations or an affiliated service group or under common control
     (within the meaning of Section 414(b), (c) or (m) of the Code), but
     only for the period during which such other entity is so affiliated
     with any Company and any other entity required to be aggregated with
     any Company pursuant to regulations under Section 414(o) of the Code.
     
          1.4 Beneficiary: Any person, persons or entity, described in
     Section 8.4, who shall receive benefits in the event of the Member's
     death.
     
          1.5 Code: The Internal Revenue Code of 1986, as amended.
     
          1.6 Company: Tandem Computers Incorporated, with respect to its
     Employees, or any other Affiliated Company participating in the Plan,
     as provided in section 13.3, with respect to its Employees.
     
                                       3
<PAGE>   4

          1.7  Company Account: The Account into which the Company contributions
     made on a Member's behalf, and earnings on those contributions, are 
     credited.
               
          1.8  Company Matching Contributions: The contributions made on a 
     Member's behalf by the Company pursuant to
     Section 3.2.

          1.9  Company Profit Sharing contributions: The Contributions made on a
     Member's behalf by the Company pursuant to Section 3.3.

          1.10 Compensation:

               (a) The base salary, bonuses, overtime, shift differentials and
     commissions paid to an Employee for services rendered to the Company, but
     excluding any special payments. Compensation shall include only that
     Compensation which is actually paid to an Employee during the Plan Year.
     Special payments include but are not limited to moving allowances, foreign
     pay allowances, living incentive pay and cost of living adjustments and
     other payments, as defined from time to time by the Plan Administrator.
     Compensation shall include any amount which is contributed by the Company
     pursuant to a salary reduction agreement and which is not includable in the
     gross income of the Employee under sections 125, 402(a)(8), 402(n) or
     403(b) of the Code.

              (b) The annual Compensation of each Employee taken into account 
     for determining all benefits provided under the Plan for any Plan Year 
     shall not exceed $200,000 (increased as provided by Treasury Regulations);
     1993 Compensation limit: $235,840.

                  (i) if Compensation is to be determined on a period of time 
     that contains fewer than 12 calendar months, the annual Compensation limit
     is an amount equal to

                                      4
<PAGE>   5


     the annual compensation limit for the calendar year in which the
     compensation period begins, multiplied by the ratio obtained by dividing
     the number of full months in the period by 12.


                    (ii) in determining the Compensation of a Member for
     purposes of the foregoing $200,000 limitation, the rules of Section 414 (q)
     (6) of the Code shall apply, except in applying such rules, the term
     "family" shall include only the spouse of the Member and any lineal
     descendants of the Member who have not attained age 19 before the close of
     the Plan Year.


                    (iii) if, as a result of the application of such rules the
     adjusted $200,000 limitation is exceeded, then the limitation shall be
     prorated among the affected individuals in proportion to each such
     individual's compensation as determined under this section prior to the
     application of this limitation.

                    (iv) if Compensation for any prior Plan Year is taken into
     account in determining a Member's allocations or benefits for the current
     Plan Year, the Compensation for such prior Plan Year is subject to the
     applicable annual compensation limit in effect for that prior Plan Year.

          (c) For purposes of applying the limitations of this Section, 
     Compensation for a Plan Year is the Compensation actually paid or made 
     available during such Plan Year. Notwithstanding the preceding sentence, 
     Compensation for a participant in a defined contribution plan who is 
     permanently and totally disabled (as defined in Section 22 (e)(3) of the
     Code) is the compensation such Member would have received for the Plan 
     Year if the Member had been paid at the rate of Compensation paid 
     immediately before becoming permanently and totally disabled; such


                                      5
<PAGE>   6



     imputed Compensation for the disabled Member may be taken into account only
     if the Member is not a Highly Compensated Employee and contributions made
     on behalf of such Member are nonforfeitable when made. 1.11 Deferred
     Account: The Account into which the Deferred Contributions are made on a
     Member's behalf and earnings and losses on those Contributions as recorded.

          1.11 Deferred Account: The Account into which the Deferred
     Contributions are made on a Member's behalf and earnings and losses on
     those Contributions as recorded.

          1.12 Deferred Contributions: All amounts contributed pursuant to
     Section
     3.1 of the Plan.

          1.13 Disability: Disability shall be determined by Tandem based on
     medical evidence. The determination by Tandem as to whether a Member is
     disabled shall be final, binding and conclusive. A Member shall be
     considered to be disabled if his or her condition meets either of the
     following definitions:

               (a) The mental or physical inability of a Member to engage in the
     regularly assigned duties of his or her employment with the Company which 
     inability is expected to be of long-continued and indefinite duration; or

               (b) Disability determined under the long-term disability plan
     maintained by the Company.

          1.14 Direct Rollover: An Eligible Rollover Distribution paid directly
     to an Eligible Retirement Plan for the benefit of a Distributee.

          1.15 Distributee: An employee, surviving spouse of a Deceased
     employee, or a spouse entitled to payment under a Qualified Domestic
     Relations order.

          1.16 Effective Date: The Plan became effective on July 1, 1984. The
     Effective Date of this restatement shall be January 1, 1993; provided,
     however, that any provision of this Plan required as a result of the Tax
     Reform Act of

                                       6
<PAGE>   7


     1986 or any subsequent legislation shall be effective as of the earliest
     date required by such legislation.

          1.17 Eligible Retirement Plan:

               (a) with respect to any Distributee, an individual retirement 
     account described in section 408(a) of the Code;

               (b) with respect to a Distributee who is an Employee or a spouse
     or former spouse of an Employee who is an Alternate Payee under a Qualified
     Domestic Relations Order as defined in Section 12.1 below, an Eligible
     Retirement Plan shall also mean an individual retirement annuity (other
     than an endowment contract) described in Section 408(b) of the Code, a
     qualified trust described in Section 401(a) of the Code or an annuity plan
     described in Section 403(a) of the Code.

          1.18 Eligible Rollover Distribution: All or any portion of the balance
     to the credit of an Employee, except as provided in Treasury regulations
     section 1.402(c)-2T.

          1.19 Employee:

               (a) Any person employed by the Company other than as an
     independent contractor. The term Employee shall include any person (other
     than an Employee of the Company) who, pursuant to an agreement between the
     Company and any other person ("Leasing Organization"), has performed
     services for the Company (or for the Company and related persons determined
     in accordance with section 414(n)(6) of the Code) on a substantially
     full-time basis for a period of at least one year, and such services are of
     a type historically performed by employees in the business field of the
     Company ("Leased Employee"). A Leased Employee shall not be considered an
     Employee of the Company if both of the following conditions are met:

                                       7
<PAGE>   8

                    (i) such Leased Employee is covered by a money purchase
     pension plan providing:

                              (A) a non-integrated employer contribution rate of
     at least 10% of compensation, as defined in Section 415(c)(3) of the Code,
     but including amounts contributed pursuant to a salary reduction agreement
     which are excludable from the Leased Employee's gross income under section
     125, section 402(a)(8), Section 402(h) or section 403(b) of the Code;

                              (B) immediate participation; and

                              (C) full and immediate vesting.

                    (ii) Leased Employees do not constitute more than 20% of the
     Company's non-highly-compensated work force. Contributions or benefits
     provided a Leased Employee by the Leasing Organization which are
     attributable to services performed for the recipient employer shall be
     treated as provided by the recipient employer.

               (b) For purposes of this Plan, the term "Employee" Shall not
     include:

                    (i) employees who are nonresident aliens (within the meaning
     of section 77 01 (b) (1) (B) of the Code and who receive no earned income
     within the meaning of Section 911(d)(2) of the Code from the Company which
     constitutes income from sources within the United States (Within the
     meaning of section 861(a)(3) of the Code).

                    (ii) employees included in a unit of employees covered by a
     collective bargaining agreement between the Company and employee
     representatives, if retirement benefits were the subject of good faith
     bargaining and if two percent or less of the employees who are covered
     pursuant to that agreement are professionals as


                                       8
<PAGE>   9

     defined in Treasury regulations section 1.410(b)-9. For this purpose, the
     term employee representatives" does not include any organization more than
     half of whose members are employees who are owners, officers or executives
     of the Company.

          1.20 Enrollment Date: The first day of the first full payroll period
     subsequent to an Employee's date of employment or reemployment.

          1.21 ERISA: The Employee Retirement Income Security Act of 1974, as
     amended.

          1.22 Excess Contributions: For any Plan Year, the total amount, (if
     any) of Deferred Contributions, which are "excess contributions", within
     the meaning of section 401(k) (8) (B) of the Code, made on behalf of Highly
     Compensated Employees which exceeds the amount of such Deferred
     Contributions that could be made for such Plan Year without violating the
     requirements of Section 3.7(a).

          1.23 Excess Deferrals: For any Plan Year, any amount allocated by the
     Member to the Plan as an excess deferral, within the meaning of section
     402(g)(2)(A) of the Code, for that Plan Year. 1.24 Fiduciary: A person who
     is a fiduciary as defined in section 3(21) of ERISA.

          1.25 Fund or Investment Fund: The separate funds to which Members
     direct investment of contributions made on their behalf in accordance with
     Article 4.

          1.26 Highly Compensated Employee: Highly Compensated Active Employees
     and Highly Compensated Former Employees, as defined below.

               (a) "Highly Compensated Active Employee" includes any Employee
     who performs service for the Company during the determination year and who,
     during the look-back year:


                                       9
<PAGE>   10

                    (i) received compensation from the company in excess of
     $75,000 (as adjusted pursuant to Section 415(d) of the Code;

                    (ii) received compensation from the Company in excess of
     $50,000 (as adjusted pursuant to Section 415(d) of the Code) and was a
     member of the top-paid group for such year; or

                    (iii) was an officer of the Company and received
     compensation during such year that is greater than 50 percent of the dollar
     limitation in effect under Section 415 (b) (1) (A) of the Code. The term
     "Highly Compensated Active Employee" also includes Employees who are
     described in the preceding sentence if the term "determination year,, is
     substituted for the term "look-back year" and if the Employee is one of the
     100 Employees who received the most compensation from the Company during
     the determination year. Employees who are 5 percent owners at any time
     during the look-back year or determination year are included as Highly
     Compensated Active Employees.

               (b) If no officer has satisfied the compensation requirement of
     Section 1.26(a) (ii) above during either a determination year or look-back
     year, the highest paid officer for such year shall be treated as a Highly
     Compensated Employee.

               (c) A "Highly Compensated Former Employee" includes any Employee
     who separated from service (or was deemed to have separated) prior to the
     determination year, performed no service for the Company during the
     determination year, and was a Highly Compensated Active Employee for either
     the separation year or any

                                       10
<PAGE>   11

     determination year ending on or after the Employee's 55th birthday.

               (d) If an Employee is, during a determination year or look-back
     year, a family member of either a 5 percent owner who is an active or
     former Employee or a Highly Compensated Employee who is one of the 10 most
     highly compensated Employees ranked on the basis of compensation paid by
     the Company during such year, then the family member and the 5 percent
     owner or top-ten highly compensated Employee shall be aggregated. In such
     case, the family member and 5 percent owner or top-ten highly compensated
     Employee shall be treated as a single Employee receiving compensation and
     Plan contributions or benefits equal to the sum of such compensation and
     contributions or benefits of the family member and 5 percent owner or
     top-ten highly compensated Employee. For purposes of this section, family
     member includes the spouse, lineal ascendants or descendants, or a spouse
     of a lineal ascendant or descendant.

               (e) The determination of who is a Highly Compensated Employee
     including the determinations of the number and identity of Employees in the
     top-paid group, the top 100 Employees, the number of Employees treated as
     officers and the compensation that is considered, will be made in
     accordance with section 414(q) of the Code and the regulations thereunder.

               (f) For the purpose of defining a Highly Compensated Employee,
     the determination year shall be the Plan Year. The lookback year shall be
     the twelve-month period immediately preceding the determination year.

                                       11
<PAGE>   12


          1.27 Member: Any person included in the membership of the Plan as
     provided in Article 2.

          1.28 Normal Retirement Date: The date a Member attains age 59-1/2.

          1.29 Plan: The Tandem Computer Incorporated 401(k) Investment Plan as
     set forth in this document as amended.

          1.30 Plan Year: The 12-month period beginning on January 1 and ending
     on December 31.

          1.31 Profits: Both retained earnings and current net income of the
     Company before deduction of federal, state and local income taxes and
     before any contributions made by the Company to this or any other employee
     benefit plan maintained by the Company, as determined by its independent
     public accountants in accordance with generally accepted principles
     consistently applied.

          1.32 Rollover Account: The Account established to record a Member's
     rollover contributions under Section 3.4 of the Plan and gains and losses
     thereon.

          1.33 Section 401(k) Ceiling: The dollar limit established in section
     402(g)(1) of the Code, or any successor provisions. The Section 401(k)
     Ceiling is $8,994 for 1993.

          1.34 Section 415-Compensation: Wages, salaries, and fees for
     professional services and other amounts received (without regard to whether
     or not an amount is paid in cash) for personal services actually rendered
     in the course 

                                       12
<PAGE>   13

     of employment with the Company, limited by section 401(a)(17) of the Code
     ($235,840 in 1993), to the extent that the amounts are includable in gross
     income (including, but not limited to, commissions paid salesmen,
     compensation for services on the basis of a percentage of profits,
     commissions on insurance premiums, tips, bonuses, fringe benefits,
     reimbursements, and reimbursements or other expense allowances under a
     nonaccountable plan (as described in Treasury regulations section
     1.62-2(c)), and excluding the following:

               (a) Employer contributions to a plan of deferred compensation
     which are not includable in the Employee's gross income for the taxable
     year in which contributed, or Company contributions under a simplified
     employee pension plan to the extent such contributions are deductible by
     the Employee, or any distributions from a plan of deferred compensation;

               (b) Amounts realized from the exercise of a non-qualified stock
     option, or when restricted stock (or property) held by the Employee either
     becomes freely transferable or is no longer subject to a substantial risk
     of forfeiture;

               (c) Amounts realized from the sale, exchange or other disposition
     of stock acquired under a qualified stock option; and

                           (d)       other amounts which received special tax
     benefits, or contributions made by the Company (whether or not under a
     salary reduction agreement) towards 

                                       13
<PAGE>   14

     the purchase of an annuity contract described in section 403(b) of the Code
     (whether or not the contributions are actually excludable from the gross
     income of the Employee).

          1.35 Tandem: Tandem Computers Incorporated.

          1.36 Trust Agreement: The agreement or agreements entered into by
     Tandem and the Trustee to provide the benefits payable under this Plan.

          1.37 Trustee: Such person or persons, including any successor or
     successors thereto, designated by the Board of Directors of Tandem, to act
     as Trustee of the trust and to hold the trust assets in accordance with the
     provisions of the Trust Agreement.

          1.38 Valuation Date: The last day of each month, or any more frequent
     period prescribed by Tandem. However, for purposes of determining the
     amount of withdrawals or distributions, the valuation Date shall be the
     last day of each calendar month coinciding with or immediately following
     the relevant event (such as, but not limited to, termination of employment
     or death) unless Tandem designates a different valuation date specifically
     for the purpose of withdrawals and/or distributions.

          1.39 W-2 Adjusted Compensation: wages as defined in section 3401(a) of
     the Code and all other payments of compensation to an Employee by the
     Company (in the course of the Company's trade or business) for which the
     company is required to furnish the Employee a written statement


                                       14
<PAGE>   15

     under sections 6041 (d) and 6051 (a) (3) of the Code, computed without
     regard to any limits under section 3401(a) of the Code based an the nature
     or location of the employment or the services performed. For purposes of
     this Plan, W-2 Adjusted Compensation shall include amounts contributed by
     the Company pursuant to a salary reduction agreement and which is not
     includable in the gross income of the Employee under sections 125,
     402(a)(8), 402(h) or 403(b) of the Code.

ARTICLE II  ELIGIBILITY AND MEMBERSHIP

          2.1 Eligibility. Each Employee shall be eligible to become a Member on
     the first Enrollment Date (or as soon thereafter as is administratively
     practicable) after the date he or she files with Tandem a form or forms
     prescribed by Tandem on which he or she:

               (a) Makes an election to defer Compensation, pursuant to Section
     3.1;

               (b) Authorizes the company to reduce his or her Compensation; and

               (c) Makes an investment election pursuant to Section 4.2.

          2.2 Reemployment of Former Employees and Former Members. Any person
     reemployed by the Company as an Employee shall be eligible to become a
     Member of the Plan upon the Enrollment Date coincident with or immediately
     following the date he or she is re-employed.

                                       15
<PAGE>   16

          2.3 Transferred Members. A Member who

                    (i) remains in the employ of the Company or an Affiliated
     Company but ceases to be an Employee,

                    (ii) is on temporary assignment to a partnership or joint
     venture in which the Company is a partner or member, or

                    (iii) is otherwise assigned by the Company to an employer
     which is not an Affiliated Company and in a position which is designated by
     Tandem as a transfer for purposes of this Section 2.4, shall continue to be
     a Member of the Plan but shall not be eligible to make deferred
     contributions or to receive allocations of Company Matching Contributions
     or Company Profit Sharing Contributions while his or her employment status
     is other than as an Employee.

          2.4 Termination of Membership. Except as otherwise provided in Section
     2.4, an Employee who has become a Member shall remain a Member until his or
     her employment with the Company and all Affiliated Companies terminates,
     or, if later, until his or her entire Account balance is distributed.
     However, a Member who is not an Employee shall not make any contributions
     to the Plan; have any contributions made to the Plan on his or her behalf;
     or (unless he or she is a party-in-interest as defined in ERISA) borrow any
     amounts from the Plan.

  ARTICLE III CONTRIBUTIONS.

          3.1 Deferred Contributions.


                                       16
<PAGE>   17

               (a) Elective Deferrals. Prior to the date an Employee becomes a
     Member, subject to the limitations of Sections 3.7 and 3.8 he or she may
     voluntarily elect on a form prescribed by Tandem to have his or her
     subsequent Compensation reduced and contributed to the Plan by the Company
     as Deferred Contributions. Subject to other provisions of this Article, the
     amount of Deferred Contributions made on behalf of a Member shall be not
     less than 1% and not more than 18% of his or her compensation, in multiples
     of 1% as elected by the Member. In addition, the amount of a Deferred
     Contribution made on behalf of any Member for any calendar year shall not
     exceed the Section 401(k) Ceiling. The Deferred Contributions shall be paid
     to the Trustee as soon as administratively practicable.

               (b) Excess Deferrals. Notwithstanding the foregoing, Tandem in
     its discretion (i) may suspend or limit any Member's Deferred Contributions
     at any time in order to prevent the cumulative amount of the Deferred
     Contributions contributed on behalf of the Member for any calendar year
     from exceeding the Section 401(k) Ceiling, and (ii) may (but shall have no
     obligation whatsoever to) cause any Excess Deferral for that Plan Year
     (with or without any income allocable to such amount) to be distributed to
     the Member in accordance with section 402(g)(2)(A)(ii) of the Code. In the
     event any Excess Deferral is distributed pursuant to this subsection
     3.1(b), the amount of the distributed Excess Deferral shall be reduced by
     the amount of any Excess Contribution previously distributed for the same
     Plan Year.

          3.2 Company Matching Contributions.

                                       17
<PAGE>   18

               (a) Match A. Each Plan Year, the Company shall contribute out of
     its Profits for each payroll period for each Member who is an Employee of
     the Company (other than Ungermann Bass, Inc.) and who elects to have
     Deferred Contributions made on his or her behalf under Section 3.1, an
     amount equal to 100% of the Member's Deferred Contribution up to the
     following:

<TABLE>
<CAPTION>
- ------------------------------------------------------ -----------------------------------------------------
Contribution                                           Matching Cap
- ------------------------------------------------------ -----------------------------------------------------
<S>                                                    <C>

    1%                                                 1% of Compensation

    2%                                                 11/2% of Compensation

    3%                                                 2% of Compensation

4% or more                                             21/2% of Compensation (subject to a minimum matching
                                                       contribution of $600
- ------------------------------------------------------ -----------------------------------------------------
</TABLE>


     In the event a Match A contribution to a Member is limited by a Member's
     ability to contribute Deferred Contributions because the Member's Deferred
     Contributions have reached the Section 401(k) Ceiling for the calendar
     year, the amount of Match A contributions which would have been made to the
     Member on Deferred Contributions in excess of the Section 401(k) Ceiling
     shall be made to the Member's Company Account in the first month of the
     following Plan Year; provided that the Member is employed by the Company at
     the end of the first month of the following Plan Year.

               (b) Match B. The Company shall match the Deferred Contributions
     of each Member who is an employee of Ungermann Bass,Inc. in an amount equal
     to such Deferred contributions up to a maximum of $400 in any Plan Year.

 
                                     18
<PAGE>   19

               (c) Match C. In addition to the matching contributions in
     paragraphs (a) and (b) above, the Company may, in its discretion, make
     additional matching contributions for each Member, in such amounts as the
     company's Board of Directors shall determine.

               (d) Except as provided in paragraph (a) above, Company Matching
     Contribution Match A, Match B and/or Match C shall be paid to the Trustee
     at the same time or as soon as practicable after the Member's Deferred
     Contributions are paid to the Trustee, but in no event later than the due
     date for filing the Company's federal income tax return (including
     extensions) for the Plan Year.

          3.3 Company Profit Sharing Contributions.

               (a) The Board of Directors of each Affiliated Company
     participating in the Plan shall determine the amount, if any, of Company
     Profit Sharing contributions to be made to the Plan for each Plan Year to
     be allocated among its eligible Employees. Company Profit Sharing
     Contributions of an Affiliated Company for any Plan Year may be made in one
     or more payments at any time; provided the total amount of any such
     contribution for any Plan Year shall be paid to the Trustee not later than
     the date on which the Affiliated Company's income tax return is required to
     be filed, including any extensions for filing obtained. For all purposes of
     the Plan, Company Profit Sharing Contributions shall be subject to the
     distribution limitations of Article VIII. Company Profit Sharing
     Contribution amounts allocated to a Member's Company Account

                                       19
<PAGE>   20

     shall not be eligible for hardship distribution under Section 6.2 of the
     Plan.

               (b) Neither the Trustee nor any Member shall have any right or
     duty to inquire into the amount of the Company Profit sharing Contribution
     or the method used in determining the amount of the Company Profit Sharing
     Contribution. The Trustee shall be accountable only for funds actually
     received by the Trustee.

               (c) Company Profit Sharing Contributions, if any, made by each
     Affiliated Company with respect to a Plan Year shall be allocated as
     follows:

                    (i) Company Profit Sharing Contributions shall be allocated
     among the Company Accounts of all eligible Employees who were employed by
     the Affiliated Company during the Plan Year in proportion to their
     Compensation from the Affiliated Company for such Plan Year.

                    (ii) Notwithstanding the foregoing, the Administrator may,
     with respect to a Plan Year, allocate Company Profit Sharing Contributions
     to such Members and in such a manner as it deems necessary or appropriate
     to satisfy the test of Section 3.7(a).

          3.4 Member Rollover Contributions.

               (a) Rollovers Allowed. Without regard to any limitations on
     contributions set forth in Section 3.7 or 3.8, the Plan may receive:

                                       20
<PAGE>   21

                    (i) a Direct Rollover, in the form of cash, from an Eligible
     Retirement Plan on behalf of a Member; or

                    (ii) from a Member, in cash, any Eligible Rollover
     Distribution amount previously received by him or her from a tax qualified
     plan within 60 days after such receipt.

               The rollover contributions shall be paid to the Trustee as soon
     as practicable. All amounts attributable to rollover contributions shall be
     held in a separate account under this Plan.

               (b) Nonqualifying Rollovers. If it is later determined that a
     transfer to the Plan did not in fact qualify as a tax free rollover under
     the Code, then the balance credited to the Member's Rollover Account shall
     immediately be (i) segregated from all other Plan assets, (ii) treated as a
     nonqualified trust established by and for the benefit of the Member, and
     (iii) distributed to the Member. Such a nonqualifying rollover shall be
     deemed never to have been a part of the Plan.

          3.5 Change in Contributions. The percentage of Compensation designated
     by a Member under Section 3.1 shall automatically apply to increases and
     decreases in his or her Compensation. Subject to the provisions of Section
     3.1, a Member may change the percentage of his or her authorized
     Compensation reduction on a form prescribed by Tandem, to be effective as
     of the first day of the following pay period, or as soon thereafter as is
     administratively practicable.

          3.6 Revocation of Contributions. A Member may revoke

                                       21
<PAGE>   22

     his or her election under Section 3.1 any time by written notice to Tandem.
     The revocation shall become effective as soon as practicable after its
     receipt by Tandem. A Member who has revoked his or her election under
     Section 3.1 may apply, on a form prescribed by Tandem, to have his or her
     Compensation reduction resumed in accordance with Section 3.1 on the first
     day of the following pay period, or as soon thereafter as is
     administratively practicable.

          3.7 Limitations Affecting Highly Compensated Employees.

               (a) Actual Deferral Percentage Limitation. The Actual Deferral
     Percentage ("ADP") for Highly Compensated Employees who are Members or who
     are eligible to become Members shall not exceed the ADP for all other
     Employees who are Members or eligible to become Members multiplied by 1.25.
     If the ADP for Highly Compensated Employees exceeds the ADP for all other
     Employees who are Members or eligible to become Members by no more than two
     percentage points, the 1.25 multiplier in the preceding sentence shall be
     replaced by 2.0.

               (b) (1) Determination of Excess Contributions. The amount of
     Excess Contributions for a Highly compensated Employee will be determined
     in the following manner:

                    (i) First, the ADP of the Highly Compensated Employee with
     the highest ADP shall be reduced to the extent necessary to satisfy the ADP
     test or cause such percentage to equal the ADP of the Highly Compensated
     Employee with the next highest percentage. 

                    (ii) Second, this process shall be

                                       22
<PAGE>   23

     repeated until the ADP test is satisfied. The amount of Excess
     Contributions for a Highly Compensated Employee is then equal to the total
     of elective and other contributions taken into account for the ADP test
     minus the product of the Member's ADP, as determined above, and the
     Member's W-2 Adjusted compensation.

               (b) (2) Determination of Excess Contributions Under the Family
     Aggregation Rules. In the case of a Highly Compensated Employee whose ADP
     is determined under the family aggregation rules, the amount of Excess
     Contributions shall be determined in the following manner:

                    (i) If the Highly Compensated Employee's ADP is determined
     by combining the contributions and W-2 Adjusted Compensation of all family
     members, then the ADP is reduced in accordance with the "leveling" method
     described in section 1.401(k)l(f)(2) of the regulations. Excess
     Contributions for the family unit are allocated among the family members in
     proportion to the contributions of each family member that have been
     combined.

                    (ii) If the Highly Compensated Employee's ADP is determined
     by combining the contributions and W-2 Adjusted Compensation of only those
     family members who are highly compensated without regard to family
     aggregation, then the ADP is reduced in accordance with the leveling method
     but not below the ADP of eligible nonhighly compensated family members.
     Excess Contributions are determined by taking into account the
     contributions of the eligible family members who are highly compensated
     without regard to family aggregation and are allocated among such family
     members in proportion to their contributions.

               (c) Correction Concerning Actual Contribution Percentage.

                                       23
<PAGE>   24

                    (i) Tandem, in its discretion, to the extent practicable,
     may reduce the amounts elected by Highly Compensated Employees under
     Section 3.1 to avoid having an Excess Contribution for the Plan Year. Such
     reduction shall occur before amounts are contributed to the Plan. Highly
     Compensated Employees with the highest percentage elections under Section
     3.1 shall have their elections reduced first to the extent deemed necessary
     to avoid an Excess Contribution.

                    (ii) To the extent Excess Contributions are made to the
     Plan, the Excess Contributions plus any income allocable thereto
     (determined in accordance with Treasury Regulations) and minus any excess
     deferrals previously distributed for the same Plan Year shall be
     distributed to Highly Compensated Employees.

                    (iii) Should the Plan still fail to meet the requirements of
     paragraph (a) of this Section as of the last day of any Plan Year, then the
     Company may make a special contribution to the Plan on account of that Plan
     Year in an amount sufficient, taking into account the next sentence, for
     the Plan to meet Section 3.7(a). Such special contributions shall be
     considered as qualified nonelective contributions under section 401(k) of
     the Code. In no event, however, shall the Company's contributions for any
     year exceed the maximum amount deductible from the Company's income for
     that year under section 404(a)(3)(A) of the Code. The special contributions
     shall be made only from the Profits of the Company and shall be paid to the
     Trustee no later than the due date for filing the Company's federal income
     tax return (including extensions) for the Plan Year.

          3.8 Maximum Annual Additions. (a) For any Plan Year, which shall be
     considered

                                       24
<PAGE>   25

     The "limitation year" for purposes of section 415 of the Code, the annual
     addition to a Member's Accounts when added to the Member's annual addition
     for that Plan Year under any other qualified defined contribution plan of
     the Company or an Affiliated Company, shall not exceed an amount which is
     equal to the lesser of (i) 25% of his or her Section 415 Compensation for
     that Plan Year, or (ii) $30,000 or if greater, one-fourth of the defined
     benefit dollar limitation set forth in section 415(b) (1) of the Code as in
     effect for the limitation year.

               (b) Tandem, in its discretion, based on projected Compensation
     for any Member for a Plan Year, may limit (i) the amount of Deferred
     Contributions made by the Member, or (ii) Company Profit Sharing
     Contributions which would have been allocated to the Member's Company
     Account, in order to comply with the limitation of paragraph (a) above.

               (c) If the annual addition to a Member's Accounts for any Plan
     Year, prior to the application of the limitation set forth in paragraph (a)
     above, exceeds such limitation, the amounts of contributions credited to
     the Member's Accounts under this Plan for such Plan Year shall be adjusted
     to the extent necessary to satisfy such limitation in accordance with the
     following order of priority:

                    (i) The Member's Deferred contributions for such Plan Year
     which were not matched by Company contributions pursuant to Section 3.2
     shall be reduced.

                    (ii) The Member's Deferred Contributions which were matched
     by Company contributions and corresponding company Matching contributions
     shall be reduced pro rata.

                    (iii) The Member' s Company Profit Sharing Contributions
     shall be reduced.

                    (iv) The amount of any adjustment

                                       25

<PAGE>   26


     described in (i), (ii) and (iii) above together with any investment
     earnings thereon, shall be used to reduce the Member's Deferred
     Contributions for future Plan Years and allocated to the Member's Account
     for such years. If the Member is not covered by the Plan in future Plan
     Years, the excess amounts shall be used to reduce Company Matching
     Contributions in future Plan Years. The Member shall make no Deferred
     contributions nor shall the Company make any Matching Contributions as long
     as any unallocated adjustments described in (i) and (ii) above remains. If
     any such excess is actually used to reduce Company Matching Contributions,
     the Company shall pay the affected Member an amount equal to this
     reduction.

               (d) For purposes of this section, the "annual addition" to a
     Member's Accounts under this Plan or any other qualified defined
     contribution plan maintained by the company or an Affiliated Company shall
     be the sum of:

                    (i) The total of contributions made under this Plan and any
     other such qualified defined contribution plan, excluding any rollover
     contributions, and

                    (ii) Forfeitures, if any, that have been allocated to the
     Member's Accounts for the Plan Year.

               (e) All defined contribution plans (terminated or not) maintained
     by the Company or an Affiliated Company shall be considered as one plan in
     applying the limitations of this Section.

               (f) Employee Stock Ownership Plan Rules. In applying the
     limitations of this Section with another qualified defined contribution
     plan that is an employee stock ownership plan, the special limitation
     applicable to employee stock ownership plans under section 415(c) (6) of
     the Code shall be taken into account with respect to a Member who
     participates in any such plan.

                                       26
<PAGE>   27

               (g) Defined Benefit Plans. If any Member participates in both
     this Plan and one or more defined benefit plans maintained by the Company
     or an Affiliated company (including any terminated plan), then the sum of
     the following two fractions cannot exceed 1.0:


                    (Projected annual benefit (determined as of the close of the
                    Plan Year) of the Member under all such defined benefit
                    plans

                                  (divided by)

                    The lesser of (1) the product of 1.25 multiplied by the
                    dollar limitation in effect under section 415(b)(1)(A) of
                    the Code for such Plan Year, or (2) the product of 1.4
                    multiplied by the amount which may be taken into account
                    under section 415(b)(1)(B) with respect to such Member for
                    such Plan Year)

                                      plus

                    (Sum of annual additions to such Member's account under all
                    Company and Affiliated Company defined contribution plans as
                    of the close of the Plan Year and for all prior Plan Year

                                  (divided by)

                    The sum of the lesser of the following amounts determined
                    for such Plan Year and for each prior year of service with
                    the company and any Affiliated Company: (1) the product of
                    1.25 multiplied by the dollar limitation in effect under
                    section)
                                       27

<PAGE>   28

                    415(c)(1)(A) for such Plan Year (determined without regard
                    to subsection (c)(6)), or (2) the product of 1.4 multiplied
                    by 25 percent of the Member's Section 415 Compensation for
                    such Plan Year.)

     If the sum of these two fractions would exceed 1.0 without an adjustment of
     benefits under the defined benefit plan or plans, then the Member's
     benefits under the defined benefit plan or plans will be limited to the
     extent required to ensure that the sum of these two fractions does not
     exceed 1.0 and to the extent allowed under the Code. If the annual
     additions to a Member's Accounts would still exceed the limitations of this
     paragraph (e), the provisions of paragraph (b) shall be applied to the
     extent necessary.

               For any Plan Year in which the Plan is a Top- Heavy Plan as
     defined in section 11.1, the number "1.0" shall be substituted for the
     number "1.25" wherever it appears above.

               (h) Adjustments. If, as a result of a reasonable error in
     estimating a Member's Section 415 Compensation, or other circumstances
     which permit the application of this rule under section 415 of the Code,
     any of the limitations of this Section otherwise would be exceeded with
     respect to any Member for any Plan Year, then the following actions, but
     only to the extent necessary to avoid exceeding such limitations, shall be
     taken in the following order:

                    (i) The Member's accrued benefit under any defined benefit
     plan shall be frozen and/or the rate of its future accrual shall be
     reduced;

                    (ii) The method set forth in Section 3.8(b) shall be
     followed; and

                    (iii) Any excess annual addition under

                                       28
<PAGE>   29

     this Section to the extent not covered by (ii) above shall be reallocated
     to the suspense account, and the balance credited to such account shall be
     applied to reduce the Company contributions authorized to be made for and
     allocated to all eligible Members in the Plan for succeeding Plan Years in
     order of time.

               Suspense accounts established under this paragraph (g) shall not
     share in allocations of earnings and gains (or losses) of any Trust funds.
     The balances credited to all suspense accounts shall be returned to the
     Company upon termination of the Plan.

          3.9 Return of Contributions. The Company may request a return, and
     this Section shall not prohibit return, of an amount to the Company under
     any of the following circumstances:

               (a) All contributions to this Plan are made on the condition that
     they are deductible by the Company under section 404 of the Code. If all or
     part of the Company's deductions under section 404 of the Code for
     contributions to the Plan are disallowed by the Internal Revenue Service,
     the portion of the contributions to which that disallowance applies shall
     be returned to the Company, increased by any gains or reduced by any
     investment loss attributable to those contributions. The return shall be
     made within one year after the disallowance of deduction.

               (b) The Company may recover the amount of its contributions to
     the Plan made on account of a mistake in fact, reduced by any investment
     loss attributable to those contributions, if recovery is made within one
     year after the date of those contributions.

               (c) In the event that Deferred Contributions made under Section
     3.1 are returned to the Company in accordance with the provisions of this
     Section, the elections to reduce

                                       29
<PAGE>   30

     Compensation which were made by Members on whose behalf those contributions
     were made shall be void retroactively to the beginning of the period for
     which those contributions were made. The Deferred Contributions so returned
     shall be distributed in cash to those Members for whom such contributions
     were made; provided, however, that if the contributions are returned under
     the provisions of paragraph (a) above, the amount of Deferred Contributions
     to be distributed to Members shall be adjusted to reflect any investment
     gains or losses attributable to those contributions.

ARTICLE IV  INVESTMENT OF CONTRIBUTIONS.

               Each Member shall have the right to direct the investment of any
     or all of his or her Accounts among such investments as are authorized by
     the Plan Administrator, as follows: Subject to such procedural guidelines
     as the Plan Administrator shall from time to time establish, each Member
     may file a written investment direction with the Plan Administrator (or
     directly with the Trustee if so instructed by the Plan Administrator) that
     specifies the manner in which his or her Accounts are to be invested;
     provided, however, that no Member may direct any assets of his or her
     Accounts to the purchase of life insurance, or into the purchase of life
     annuity contracts. The Plan Administrator shall prescribe dates as of which
     investment directions shall be effective and time periods within which
     written investment directions must be filed with the Plan Administrator. An
     investment direction shall continue to apply until a subsequent written
     direction is filed with the Plan Administrator (or with the Trustee). If
     received by the Plan Administrator, the Plan Administrator shall forward
     investment directions to the Trustee (or to such third party as the Plan

                                       30
<PAGE>   31

     Administrator and the Trustee shall designate) in order to implement the
     Member's directions.

ARTICLE V  VALUATION OF ACCOUNTS AND VESTING.

          5.1 Introduction - Fund Accounting and Share Accounting. Some of the
     Investment Funds may be operated using "fund accounting" and some may be
     operated using "share accounting." With fund accounting, Members' interests
     in the Fund will be recorded as a portion of the Fund's total value at such
     Valuation Date. With share accounting, Members' interests in the Fund will
     be recorded as an interest in a stated number of shares in the Fund, and
     those shares will be valued at each Valuation Date and more frequently as
     is administratively feasible. To the extent possible, Tandem intends to
     make available Funds with share accounting.

          5.2 Valuation of Shares. The value of a share in a Fund using share
     accounting shall be determined at fair market value on each Valuation Date
     and more frequently as is administratively feasible.

          5.3 Valuation of Funds. The value of that portion of a Member's
     Account invested in a Fund that uses fund accounting shall be determined by
     adding (i) the valuation of that portion of the Member's Accounts invested
     in such Fund, as determined on the prior valuation Date, (ii) contributions
     and loan repayments credited to the Member's Accounts during the valuation
     period and (iii) the investment experiences credited to the Member's
     Accounts pursuant to Section 5.5, below, and subtracting any distributions
     from the Accounts made during the valuation period.

          5.4 Crediting Accounts When Investments are Made in Funds with Share
     Accounting. To the extent that a Member's Accounts are invested in Funds
     that use share accounting, the

                                       31
<PAGE>   32

     Member's Accounts shall be credited with the number of shares acquired with
     the relevant amount of the Deferred Contributions, Company Matching
     Contributions and/or Company Profit Sharing Contributions made to that Fund
     on behalf of the Member, or rollover contributions (if any), valued on the
     actual date that such shares are actually acquired by the Trustee.

          5.5 Crediting Accounts When Investments are Made in Funds with Fund
     Accounting. The following rules shall apply for crediting the Accounts of
     Members with investment gains or losses to the extent such Accounts are
     invested in a Fund with fund accounting. Such Accounts shall be credited
     with a pro rata portion of the losses or gains experienced by the Fund,
     determined on the last day of the valuation period. This pro rata portion
     of investment losses or gains shall be determined by the Fund during the
     valuation period by the following fraction: The numerator shall be the
     Member's Account balance invested in the Fund as of the last day of the
     valuation period and the denominator shall be the current market value of
     Plan assets invested in the Fund, as determined by the Trustee on the
     valuation Date. The current market value of the assets in the Fund shall be
     determined by the Trustee after payment out of that Fund of all brokerage
     fees and transfer taxes applicable to purchases and sales for that Fund
     since the last Valuation Date.


          5.6 Vested Portion of Accounts. A member shall at all times be 100%
     invested and have a nonforfeitable right to all Accounts held for his or
     her benefit.

          5.7 Statements to Members. At least once a calendar Quarter each
     Member shall be furnished with a statement setting forth the value of his
     or her Accounts.

ARTICLE VI  WITHDRAWALS WHILE STILL EMPLOYED.

          6.1 Withdrawal After Age 59-1/2. A Member who shall

                                       32
<PAGE>   33

     have attained age 59-1/2 as of the effective date of any withdrawal
     pursuant to this Section may, without penalty and no more than once in any
     Plan Year, elect to withdraw all or part of his or her Accounts. The
     minimum withdrawal shall be $500, or the value of the Member's Accounts, if
     less.

          6.2 Hardship Withdrawal.

               (a) A Member may, without penalty and no more than once in any
     Plan Year, elect to withdraw all or part of the value of his or her
     Deferred Account (including (i) any earnings thereon accrued prior to
     January 1, 1989, and/or (ii) Company Matching Contributions which were 100%
     vested at the time of contribution allocated prior to January 1, 1989) upon
     furnishing to Tandem proof of financial hardship that creates an immediate
     and heavy financial need as determined by Tandem under rules uniformly
     applicable to all Members similarly situated. The amount to be withdrawn,
     net of any income taxes withheld, shall not exceed the amount required to
     meet such immediate financial need created by the hardship and not
     reasonably available from other resources reasonably available to the
     Member.

               (b) For purposes of this Section, "hardship" shall include the
     need to pay the following items:

                    (i) Expenses incurred or necessary for medical care
     described in section 213(d) of the Code for the Member, his or her spouse,
     or any dependents of the Member (as defined in section 152 of the Code);

                    (ii) Cost (excluding mortgage payments) relating to the
     purchase of a principal residence for the Member;

                    (iii) Payment of tuition and related educational fees for
     the next twelve months of post-secondary education for the Member, his or
     her spouse, children, or dependents; or

                                       33
<PAGE>   34

                    (iv) The need to prevent the eviction of the Member from his
     or her principal residence or foreclosure on the mortgage of the Member's
     principal residence.

               (c) A hardship withdrawal shall not be made unless:

                    (i) The Member has obtained all distributions, other than
     hardship distributions, and all nontaxable loans under all plans maintained
     by the Company;

                    (ii) The Member is prohibited from making Deferred
     Contributions to this Plan for twelve months after the receipt of the
     hardship distribution. In addition, the member must be prohibited, under
     the terms of the Plan, or by an otherwise legally enforceable agreement,
     from making elective contributions and employee contributions to all other
     plans of the Company for at least twelve months after receipt of the
     hardship distribution;

                    (iii) The distribution is not in excess of the amount of an
     immediate and heavy financial need (including amounts necessary to pay any
     federal, state or local income taxes or penalties reasonably anticipated to
     result from the distribution); and

                    (iv) All plans maintained by the Company limit the Member's
     Deferred Contributions for the taxable year immediately following the
     taxable year of the hardship distribution to the applicable limit under
     section 402(g) of the Code for such taxable year, less the amount of such
     Member's Deferred Contributions for the taxable year of the hardship
     distribution.

          6.3 Procedures and Restrictions. To make a withdrawal, a Member shall
     give written notice to Tandem. A withdrawal under Section 6.1 or 6.2 shall
     be based on the value of the Member's Deferred Account (and, if applicable
     earnings

                                       34
<PAGE>   35

     and Company Matching Contributions as described in Section 6.2(a)) as of
     the most recent Valuation Date. The amount of the withdrawal shall be first
     (on a proportional basis) from the Investment Funds which use share
     accounting in which the Member's Deferred Account is invested and only
     after the amounts in such Funds are depleted shall a withdrawal be made
     from any other Funds. The amount of the withdrawal under Section 6.1 and,
     if applicable, Section 6.2, shall be deducted from the applicable
     Investment Funds on a proportional basis from the Member's Accounts. All
     payments under this Article shall be made in cash as soon as practicable.
     Notwithstanding anything in this Section to the contrary, effective as of
     January 1, 1993, hardship distributions will be subject to the withholding
     and notice requirements described in Section 8.3.



  ARTICLE VII  LOANS TO MEMBERS

               (a) The Plan Administrator may authorize a loan or loans to
     currently employed Members, or parties in interest (as defined in ERISA) of
     the Plan who are Members or Beneficiaries, provided that such loans:

                    (i) are available to all such Members and Beneficiaries on a
     reasonably equivalent basis;

                    (ii) are not made available to Highly Compensated Employees,
     officers or shareholders in an amount greater than the amount made
     available to other Employees;

                    (iii) bear a reasonable rate of interest;

                    (iv) are adequately secured; and

                    (iv) no loan shall exceed the present value of the Member's
     or Beneficiary's vested accrued benefit.

               (b) In the event of default, foreclosure on

                                       35
<PAGE>   36


     the note and attachment of security will not occur until a distributable
     event occurs under the Plan.

               (c) All such loans shall be available to Members and
     Beneficiaries without regard to any individual's race, color, religion,
     sex, age or national origin. All such loans shall further be subject to
     ERISA, the Code, the regulations and rulings thereunder, and to such terms
     and conditions not inconsistent therewith (and subject to this Section) as
     the Plan Administrator shall determine pursuant to uniform policies and
     guidelines adopted by the Plan Administrator. Such policies and guidelines
     shall be in writing and (i) may be amended by the Plan Administrator from
     time to time (ii) shall be communicated to all affected Members and
     Beneficiaries, and (iii) shall be deemed a part of this Plan.


ARTICLE VIII  DISTRIBUTION OF ACCOUNTS

          8.1 Eligibility. Upon the termination of employment of a Member from
     the Company or any Affiliated Company for any reason, the entire balance to
     the credit of the Member's Accounts, determined as of the Valuation Date
     immediately preceding the date of distribution, shall be distributed as
     provided in Section 8.2, subject, however, to the provisions of Section
     8.3, if applicable.

          8.2 Method of Distribution. The balance to the credit of a Member's
     Accounts shall be made in one single sum as soon as practicable after the
     date of termination of employment, and except as provided in Section 8.1(b)
     and subject to the provisions of Section 8.3, not later than the 60th day
     after the close of the Plan Year in which the Member's termination of
     employment occurs. No payment will be made following termination of
     employment unless the Member (or if applicable, the Member's Beneficiary)
     consents in writing. If a Member (or


                                       36
<PAGE>   37

     if applicable, his or her Beneficiary) fails to consent in writing, the
     Member's distribution will be deferred until the date which is the member's
     Normal Retirement Date under the Plan, or such earlier date of distribution
     to which the Member (or if applicable, his or her Beneficiary) consents.
     Distributions may be in the form of a single sum payment or in installments
     over a fixed period of years as elected by the Member (or if applicable,
     his or her Beneficiary) . Such fixed period of years shall not exceed the
     maximum period permitted by section 401(a)(9) of the Code and shall be
     determined in a manner that satisfies Treasury Regulation 1.401(a)(9)-2,
     Q&A 4(a). Distribution of a Member's Accounts shall begin not later than
     April 1 of the calendar year following the calendar year in which he or she
     attains age 70-1/2.

          Any additional company contributions allocated to the Member for the
     Plan Year in which the Member terminates his or her employment for any
     reason and for which a distribution is requested, or the preceding Year
     Plan, if applicable, shall be paid to the Member (or if applicable, his or
     her Beneficiary) as soon as practicable after the contributions have been
     made, subject to the provisions of Section 8.3, if applicable.

          8.3 Direct Rollovers and Withholding Notice:

               (a) Effective Date: The provisions of this Section shall apply to
     all distributions from the Plan made on or after January 1, 1993.

               (b) General Rule: If the Distributee of any Eligible Rollover
     Distribution elects to have the Eligible Rollover Distribution paid
     directly to an Eligible Retirement Plan, and specifies the Eligible
     Retirement Plan to which the Eligible Rollover Distribution is to be paid,
     then the Eligible Rollover Distribution will be paid to that Eligible
     Retirement Plan in a Direct Rollover.

                                       37
<PAGE>   38

               (c) Mandatory Withholding: If a Distributes of an Eligible
     Rollover Distribution does not elect to have the Eligible Rollover
     Distribution paid directly from this Plan to an Eligible Retirement Plan in
     a Direct Rollover under section 401(a)(31) of the Code, the Eligible
     Rollover Distribution will be subject to applicable federal and state
     income tax withholding.

               (d) Notice Requirement: In the manner and to the extent required
     by applicable regulations, the Plan Administrator shall provide each
     Distributee of an Eligible Rollover Distribution, prior to making an
     Eligible Rollover Distribution, with a written explanation of the
     Distributee's right to elect a Direct Rollover and the withholding
     consequences of not making the election.

          8.4 Beneficiary. Each Member shall have the right by written notice
     delivered to Tandem before the Member's death to name, or to change, one or
     more Beneficiaries to receive, in the event of the Member's death, his or
     her Accounts which have not been distributed. The name of the Beneficiary
     shall be held on file by Tandem. If the Beneficiary of a married Member is
     other than his or her spouse, the designation must be signed by both the
     Member and his or her spouse and witnessed by a Plan representative or
     notary public, unless those requirements are waived by Tandem in accordance
     with applicable law. In the event no such designation is in effect at the
     time of death of the Member, or if no person, persons or entity so
     designated shall survive the Member, the Member's Beneficiary shall be the
     following person or persons living on the date of distribution in
     descending order of priority: (i) the Member's spouse, or (ii) the Member's
     children, in equal shares. If none of the persons specified in the
     preceding sentence are living on the

                                       38
<PAGE>   39

     date of distribution, the Member's Beneficiary shall be his or her estate.
     8.5 Proof of Death and Right of Beneficiary or Other Person. Tandem may
     require and rely upon such proof of death and such evidence of the right of
     any Beneficiary or other person to receive the value of the Accounts of a
     deceased Member as Tandem may deem proper and its determination of death
     and of the right of that Beneficiary or other person to receive payment
     shall be conclusive. 8.6 Disability. Upon a determination of Disability by
     the Plan Administrator, the entire balance to the credit of a Member's
     Accounts shall be distributed as provided in Section 8.2, subject to the
     provisions of Section 8.3, if applicable. However, in applying Section 8.2
     in the case of a Disability distribution, the date of the Plan
     Administrator's determination of the Member's Disability shall be
     substituted for the date the Member terminates employment in applying
     Section 8.2.


ARTICLE IX FIDUCIARY RESPONSIBILITIES; PLAN ADMINISTRATION; CLAIMS AND REVIEW
           PROCEDURES.

          9.1 Named Fiduciary for Plan Administration. Tandem is the named
     Fiduciary which has the authority to control and manage the operation and
     administration of the Plan, and is the "Plan Administrator" and the "Plan
     sponsor" as such terms are used in ERISA. Tandem shall make such rules,
     regulations, interpretations and computations and shall take such other
     action to administer the Plan as it may deem appropriate. In administering
     the Plan, Tandem shall act in a nondiscriminatory manner to the extent
     required by section 401 and related sections of the Code and shall at all
     times discharge its duties with respect to the Plan in accordance with the
     standards set forth in section 404(a)(1) of ERISA.


                                       39
<PAGE>   40

          9.2 Named Fiduciary for Management of Plan Assets. Tandem is the named
     Fiduciary with respect to the control and management of the assets of the
     Plan only to the extent of (i) having the duty to appoint one or more
     Trustees to hold the assets of the Plans in trust and to enter into a trust
     agreement with each such Trustee with respect to the assets held in trust
     thereunder, (ii) having the authority to remove any Trustee so appointed
     and to appoint one or more successor Trustees, (iii) having the authority
     to appoint one or more qualified investment managers for any assets of the
     Plan and to enter into a contract with each such investment manager with
     respect to the management of the assets assigned to such investment manager
     and (iv) having the authority to select one or more Investment Funds. Each
     Trustee so appointed shall have the exclusive authority and discretion to
     manage and control the assets of the Plan it holds in trust, except to the
     extent that the authority to manage, acquire and dispose of such assets is
     allocated by Tandem to one or more investment managers or except to the
     extent that Tandem has designated all of the Investment Funds that may be
     selected by Members. Each investment manager so appointed shall have the
     power to manage, including the power to dispose of such assets of the Plan
     as are assigned to it by Tandem.

          9.3 Service in Several Fiduciary Capacities. Nothing herein shall
     prohibit any person or group of persons from serving in more than one
     Fiduciary capacity with respect to the Plan (including service both as Plan
     Administrator and Trustee).

          9.4 Duties and Responsibilities of the Plan Administrator. The duties
     and responsibilities of Tandem under the Plan (which are not delegated
     pursuant to Section 9.5) shall be carried out on its behalf by its
     directors, officers, employees and agents, acting in their capacities as
     directors, officers, employees, and agents and not as individual


                                       40
<PAGE>   41

     fiduciaries. Tandem may engage the services of such persons or
     organizations to render advice or perform services with respect to its
     duties and responsibilities under the Plan as it may determine to be
     necessary or appropriate. Such persons or organizations may include, but
     shall not be limited to, actuaries, attorneys, accountants, administrators
     and consultants.

          9.5 Delegation of Fiduciary Responsibilities. In lieu of carrying out
     any of its Fiduciary responsibilities under the Plan (pursuant to Section
     9.4), Tandem may delegate its Fiduciary responsibilities (except "Trustee
     responsibilities" as defined in ERISA) to any person or persons pursuant to
     a written contract with such other person which specifies the Fiduciary
     responsibilities so delegated. Except as provided in Sections 9.11 and
     13.1, however, Tandem is specifically prohibited from designating any of
     its directors, officers or Employees as a Fiduciary and from delegating to
     any such individual any of Tandem's Fiduciary responsibilities under the
     Plan.

          9.6 Expenses of the Plan. The Company shall pay all expenses of the
     Plan, except such expenses as are paid out of the funds of the Plan
     pursuant to the terms of the trust agreement.

          9.7 Cash Requirements. From time to time, Tandem shall estimate the
     benefits and administrative expenses to be paid out of the funds of the
     Plan during the period for which such estimate is made and shall also
     estimate the Company contributions to be made to the Plan during such
     period by the Company. Tandem shall inform the Trustee of the estimated
     cash needs of the Plan during the period for which such estimates are made.
     Such estimates shall be made on an annual, quarterly, monthly or other
     basis as Tandem shall determine.

          9.8 Independent Accountant. Tandem shall engage an 

                                       41
<PAGE>   42

     independent qualified public accountant to conduct such examinations and to
     render such opinions as may be required by section 103(a)(3) of ERISA.
     Tandem may remove and discharge the person so engaged, but in such case it
     shall engage a successor independent qualified public accountant to perform
     such examinations and to render such opinions.

          9.9 Claims for Benefits.

               (a) Benefit Claim Requirement. Subject to the notice requirements
     of Section 8.3, if applicable, and except as required by section 401(a)(9)
     of the Code, no benefit will be paid to or on behalf of a Member under the
     Plan until the Member (or the Member's Beneficiary) has filed a claim for
     benefits on a form approved by Tandem which contains all information which
     Tandem may need to determine the amount of any payment due hereunder.

               (b) Effect of Late Claim. if a properly completed claim for
     benefits has not been filed at least ninety (90) days before the date as of
     which payment of the benefit payable to or an behalf of a Member is to be
     made, the payment of such benefit may be delayed for administrative
     reasons.

               (c) Prescribed Forms; Address. All claims for benefits under the
     Plan must be made in writing on the form(s) prescribed by Tandem and must
     be signed by the member or his or her Beneficiary, as appropriate. All
     claims for (or inquiries concerning) benefits under the Plan shall be
     submitted to Tandem and shall be addressed as follows: Tandem Computers
     Incorporated, Plan Administrator, 401(k) Investment Plan, 19333 Vallco
     Parkway, Cupertino, CA 95014-2599.

          9.10 Denial of Claim. In the event any claim for benefits or
     application for a loan or withdrawal is denied, in whole or in part, Tandem
     shall notify the claimant of such denial in writing and shall advise the
     claimant of his or her

                                       42
<PAGE>   43

     right to appeal the denial. Such written notice shall set forth, in a
     manner calculated to be understood by the claimant, specific reasons for
     the denial, specific references to the Plan provisions on which the denial
     is based, a description of any information or material necessary for the
     claimant to perfect his or her claim, an explanation of why such material
     is necessary and an explanation of the Plan's review procedure. Such
     written notice shall be given to the claimant within ninety (90) days after
     Tandem receives his or her claim, unless special circumstances require
     additional time for processing. If additional time for Processing is
     required, written notice shall be furnished to the claimant prior to the
     termination of the initial ninety (90) day period. Such notice shall
     indicate the special circumstances requiring the extension of time and the
     date by which Tandem expects to render its decision on the claim for
     benefits or applications for a loan or withdrawal. If a claimant has not
     received written notice that additional time is required for processing his
     or her claim or application within ninety (90) days of the date it is
     received by Tandem, the claim or application shall be deemed to have been
     denied and the claimant shall be permitted to appeal such denial in
     accordance with the review procedure described in Sections 9.11 through
     9.15. If a claimant receives proper and timely notice that additional time
     is required for processing his or her claim or application, but does not
     receive written notice of Tandem's decision with respect to the claim or
     application within one hundred eighty (180) days after the date the claim
     or application is received by Tandem, the claim or application shall be
     deemed to have been denied and the claimant shall be permitted to appeal
     such denial in accordance with the review procedure described in Sections
     9.11 through 9.15.

          9.11 Appointment of Review Panel. Tandem shall
 
                                     43
<PAGE>   44

     appoint a "Review Panel" which shall consist of three (3) or more
     individuals who may (but need not) be Employees of the company. The Review
     Panel shall be the named Fiduciary which shall have authority to act with
     respect to appeals from denials of claims for benefits or applications for
     loans or withdrawals under the Plan.

          9.12 Right to Appeal. Any person whose claim for benefits or
     application for a loan or withdrawal is denied (or deemed denied), in whole
     or in part, or such person's authorized representative, may appeal from the
     denial by submitting a written request for review of the claim to the
     Review Panel within sixty (60) days after receiving written notice of the
     denial from Tandem (or, in the case of a deemed denial, within sixty (60)
     days after the date the claim or application is deemed denied) . Tandem
     shall give the claimant (or the claimant's representative) an opportunity
     to review pertinent documents in preparing a request for review.

          9.13 Form of Request for Review. A request for review must be made in
     writing and shall be addressed as follows: "Review Panel, Tandem Computers
     Incorporated 401 (k) Investment Plan, Tandem Computers Incorporated, 19133
     Valco Parkway, Cupertino, CA 95014-2599." A request for review shall set
     forth all of the grounds upon which it is based, all facts in support
     thereof and any other matters which the claimant deems pertinent. The
     Review Panel may require the claimant to submit such additional facts,
     documents or other material as it may deem necessary or appropriate in
     making its review.

          9.14 Time for Review Panel Action. The Review Panel shall act upon
     each request for review within sixty (60) days after receipt thereof,
     unless special circumstances require additional time for review. If
     additional time for review is required, written notice shall be furnished
     to the claimant

                                       44
<PAGE>   45

     prior to the end of the initial sixty (60) day period, indicating the date
     by which the Review Panel expects to render its decision on his or her
     request for review. In no event shall the decision of the Review Panel be
     rendered more than one hundred twenty (120) days after it receives a
     claimant's request for review.

          9.15 Review Panel Decision. Within the time prescribed by Section
     9.14, the Review Panel shall give written notice of its decision to the
     claimant and Tandem. In the event the Review Panel confirms the denial of
     the claim for benefits or the application for a loan or withdrawal, in
     whole or in part, such notice shall set forth, in a manner calculated to be
     understood by the claimant, specific reasons for such denial and specific
     references to the Plan provisions on which the decision was based. In the
     event that the Review Panel determines that the claim for benefits or the
     application for a loan or withdrawal should not have been denied, in whole
     or in part, Tandem shall take appropriate remedial action as soon as
     reasonably practicable after receiving notice of the Review Panel's
     decision. If a claimant has not received written notice that additional
     time is required for review within sixty (60) days of the date his or her
     request for review is received by the Review Panel, the claim or
     application shall be deemed to have been denied on review. If a claimant
     receives proper and timely notice that additional time is required for
     review, but does not receive written notice of the Review Panel's decisions
     with respect to this claim within one hundred twenty (120) days after the
     date the Review Panel receives the request for review, the claim or
     application shall be deemed to have been denied on review.

          9.16 Rules and Procedures. The Review Panel shall

                                       45
<PAGE>   46


     establish such rules and procedures, consistent with the Plan and with
     ERISA, as it may deem necessary or appropriate in carrying out its
     responsibilities under Sections 9.12 through 9.15. The Review Panel may
     require a claimant who wishes to submit additional information in
     connection with an appeal from the denial of benefits to do so at his or
     her own expense.

          9.17 Exhaustion of Remedies. No legal or equitable action for benefits
     under the Plan shall be brought unless and until the claimant: (i) has
     submitted a written claim for benefits or application for a loan or
     withdrawal in accordance with Section 9.9, (ii) has been notified that the
     claim or application is deemed denied as provided in Section 9.10), (iii)
     has filed a written request for a review of the claim or application in
     accordance with Section 9.12 and (iv) has been notified in writing that the
     Review Panel has affirmed the denial of the claim or application (or the
     claim or application is deemed to have been denied on review as provided in
     Section 9.15).

ARTICLE X  MANAGEMENT OF FUNDS.

          10.1 Trust Agreement. All the funds of the Plan shall be held by a
     Trustee appointed from time to time by Tandem under a trust agreement
     adopted, or as amended, by Tandem as provided in Section 9.2 for use in
     providing the benefits of the Plan and paying its expenses not paid
     directly by the Company. The Trustee shall have all rights, powers and
     duties which are not inconsistent with the trust agreement. The Company
     shall have no liability for the payment of benefits under the Plan nor for
     the administration of the funds paid over to the Trustee.

          10.2 Exclusive Benefit Rule. Except as otherwise provided in the Plan,
     no part of the corpus or income of the Funds of the Plan shall be used for,
     or diverted to, purposes


                                       46
<PAGE>   47

     other than for the exclusive benefit of members and other persons entitled
     to benefits under the Plan. No person shall have any interest in or right
     to any part of the earnings of the Funds of the Plan, or any right in, or
     to, any part of the assets held under the Plan, except as and to the extent
     expressly provided in the Plan.

ARTICLE XI  TOP HEAVY PROVISIONS

          Any other provision of the Plan notwithstanding, the provisions of
     this Section shall become applicable under the circumstances described in
     this Section:

          11.1 Top Heavy Determination. For purposes of this Article, the Plan
     shall be "top-heavy" with respect to any Plan Year if, as of the last day
     of the preceding Plan Year, the value of the aggregate of the accounts
     under the Plan for "key employees," as defined in section 416(i) of Code,
     exceeds 60 percent of the value of the aggregate of the accounts under the
     Plan for all employees. The value of such accounts shall be determined in
     accordance with section 416(g) of the Code and Article 5 of this Plan. For
     purposes of determining whether the Plan is top-heavy, the account balances
     under the Plan will be combined with the account balances or accrued
     benefits under any other qualified plan of the company or an Affiliated
     Company in which there are participants who are key employees.

          11.2 Minimum Allocation. For any Plan Year with respect to which the
     Plan is top-heavy, in addition to the contributions otherwise provided
     under the Plan, the Company shall make contributions out of its Profits on
     behalf of any Member who is a non-key employee and who is eligible to make
     Deferred Contributions under Section 3.1 of the Plan at any time during the
     Plan Year and who has not separated from service with the Company or an
     Affiliated Company at the end of the Plan

                                       47
<PAGE>   48

     Year. Such contributions, when added to the Company contributions allocated
     to his or her Company Account under Section 3.2 and 3.7(c), and his or her
     Deferred Contributions allocated to his or her Deferred Account under
     Section 3.1, will be equal to a percentage of such Member's Section 415
     Compensation for such Plan Year, such percentage to be the lesser of 3% or
     the percentage rate, determined for the key employee for whom such
     percentage is the highest, equivalent to a fraction the numerator of which
     is the contribution made on behalf of such key employee by the Company
     under Sections 3.2 and 3.7(c), and his or her Deferred Contributions
     allocated under Section 3.1, and the denominator of which is the Section
     415 Compensation Of such key employee for such Plan Year not in excess of
     the amount described in paragraph (b) below. 11.3 Service Defined. For
     purposes of this Section, an Employee's "Years of Service" shall equal the
     Employee's Period of Service (expressed as calendar months) divided by
     twelve. An Employee's "Period of Service" shall be determined under the
     following rules:


               (a) Period of Employment Relationship. An Employee's Period of
     Service shall include any period during which he or she maintains an
     employment relationship with the Company or any Affiliated Company for
     which he or she receives or is entitled to receive compensation and,
     subject to (c) below, ends on the date the Employee quits, dies, is
     discharged or retires. An Employee shall not be considered to have quit
     under the following circumstances:

                    (i) When the Employee is laid-off or takes a leave of
     absence without pay approved by the Company or any Affiliated Company. In
     the case of an approved leave of absence without pay for a period in excess
     of 24 months, the Employee shall be deemed to have quit as of the end of
     such 24 month

                                       48

<PAGE>   49

     period if he or she fails to abide by the terms and conditions of such
     leave, which may include a requirement of reemployment.

                    (ii) When the Employee enters military service with the
     United States, provided the Employee returns to active employment with the
     company or any Affiliated Company within the time the Employee's
     reemployment rights are protected under applicable law. If the Employee
     does not so return, he or she shall be deemed to have quit on the date of
     entry into military service.

                    (ii) When the Employee is unable to work due to disability
     or sickness.

                    (iii) When the Employee is on jury duty, a leave of absence
     with pay, an approved vacation, a holiday, or sabbatical leave.
     Notwithstanding the foregoing, if an Employee quits, is discharged, dies or
     retires while on leave, vacation, holiday or jury duty, or while laid-off,
     disabled or sick, then, subject to (iii) below, his or her employment
     relationship with the Company or any Affiliated Company shall terminate on
     the earlier of the date of such quit, discharge, death or retirement or 12
     months after the commencement of such leave, vacation, holiday, jury duty,
     lay-off, disability or sickness. An Employee shall be deemed to have been
     discharged as of the earlier of the date he or she receives oral or written
     notice of discharge or the date a written notice is deposited in the United
     States mail (on a registered or certified basis) to the Employee's last
     known address.

               (b) Period for Which Back Pay Awarded. An Employee's Period of
     Service shall include any period not otherwise counted a part of his or her
     Period of Service for which the Employee is awarded, or entitled to, back
     pay from the Company or any Affiliated Company (regardless of any
     mitigation of damages).

                                       49
<PAGE>   50

               (c) Period Following Termination. An Employee's Period of Service
     shall include any period following the termination of his or her employment
     relationship (determined pursuant to (i) above) if the Employee is rehired
     by the company or any Affiliated Company within the 12 month period
     following such termination.

               (d) Other Periods. An Employee's Period of Service includes any
     other period which constitutes a "Period of Service" under written rules or
     regulations adopted from time to time by Tandem.

               (e) Aggregation of Periods of Service. All of an Employee's
     Periods of service determined pursuant to this Section shall be aggregated
     on the basis of complete calendar months, whether or not such Periods of
     Service are consecutive, except that if an Employee's Period of Service
     commences on other than the first day of a calendar month and ends on other
     than the last day of a calendar month, the days in such months shall be
     aggregated and one additional calendar month of service shall be credited
     if the number of such days is at least 30 but less than 60, and two
     additional calendar months shall be credited if the number of such days
     equals 60.


  ARTICLE XII  GENERAL PROVISIONS.

          12.1 Nonalienation. Except as permitted or required by any applicable
     law, no benefit under the Plan shall in any manner be anticipated, assigned
     or alienated, and any attempt to do so shall be void.

               (a) Qualified Domestic Relations Orders. Notwithstanding the
     foregoing, the Trustee is specifically authorized to comply with any
     domestic relations order which is determined by Tandem to be a Qualified
     Domestic Relations Order.

                                       50
<PAGE>   51

     For this purpose a "Qualified Domestic Relations order" means any judgment,
     decree or order which:

                    (i) creates for, or assigns to, a spouse, former spouse,
     child or other dependent of a Member an "Alternate Payee") the right to
     receive all or a portion of the Member's benefits under the Plan for the
     purpose of providing child support, alimony payments or marital property
     rights to such Alternate Payee.

                    (ii) is made pursuant to a State domestic relations law,

                    (iii) does not require the Plan to provide any type of
     benefit, or any option, not otherwise provided under the Plan, and

                    (iv) otherwise meets the requirements of section 206(d) of
     ERISA and 414(p) of the Code.

               (b) Immediate Payment Permitted. Payment may be made at any time
     to an Alternate Payee under a Qualified Domestic Relations Order, in
     accordance with that order, beginning as soon as practicable after the Plan
     Administrator determines that the order is a Qualified Domestic Relations
     Order, notwithstanding the fact that the distribution, if made to a Member
     at the time specified in the order, would not be permitted under the terms
     of the Plan.

          12.2 Conditions of Employment Not Affected by Plan. The establishment
     of the Plan shall not confer any legal rights upon any Employee or other
     person for a continuation of employment, nor shall it interfere with the
     rights of the Company to discharge any Employee and to treat him or her
     without regard to the effect which that treatment might have upon him or
     her as a Member of the Plan.

          12.3 Facility of Payment. If Tandem shall find

                                       51
<PAGE>   52


     that a Member or other person entitled to a benefit is unable to care for
     his or her affairs because of illness or accident or is a minor, Tandem may
     direct that any benefit due him or her, unless claim shall have been made
     for the benefit by a duly appointed legal representative, be paid to his or
     her spouse, a child, a parent or other blood relative, or to a person with
     whom he or she resides. Any payment so made shall be a complete discharge
     of the liabilities of the Plan for that benefit.

          12.4 Lost Member or Beneficiary. If Tandem is unable to locate a
     Member who is entitled to receive a benefit upon attainment of age 59-1/2
     or a Beneficiary who is entitled to receive a benefit under the Plan, then
     Tandem may (but need not) reallocate such property among other Members as
     part of a subsequent Company contribution on the fifth (5th) anniversary.
     In the event that such Member or Beneficiary thereafter makes a claim for
     such benefit, the Company shall reinstate such benefit (without income,
     gains or other adjustment) by making a special contribution as soon as
     reasonably practicable after such claim is made. However, if any benefit
     under the Plan would have been lost by reason of escheat under applicable
     state law, then such property shall not be subject to reinstatement by the
     Company.

          12.5 Construction. The Plan shall be construed, regulated and
     administered in accordance with ERISA, and the laws of the State of
     California, except where ERISA controls.

  ARTICLE XIII AMENDMENT, MERGER, AND TERMINATION.

          13.1 Amendment of Plan. The Board of Directors of Tandem, or its
     delegates, if Tandem has delegated its authority pursuant to Section 9.5,
     reserves the right at any time and from time to time, and retroactively if
     deemed necessary or appropriate, to amend in whole or in part any or all of
     the provisions of the Plan. In addition, the Plan Administrator may

                                       52
<PAGE>   53


     amend in whole or in part any or all of the provisions of the Plan to the
     extent that the amendment is intended to either clarify the Plan or to
     bring the Plan into compliance with applicable Federal or state law, but
     only if such amendment would not have a significant financial impact on the
     Plan or the company. However, no amendment shall make 'it possible for any
     part of the assets of the Plan to be used for, or diverted to, purposes
     other than for the exclusive benefit of persons entitled to benefits under
     the Plan. No amendment to the Plan shall be effective to the extent that it
     would have the effect of decreasing any Member's Accounts or would
     otherwise violate section 411(d) (6) of the Code. Unless Tandem expressly
     provides to the contrary in its action taken to amend the Plan, no
     amendment shall affect the rights of any Member whose employment with the
     Company terminated prior to the date on which the amendment was adopted.

          13.2 Merger or Consolidation. The Plan may not be merged or
     consolidated with, and its assets or liabilities may not be transferred to,
     any other plan unless each person entitled to benefits under the Plan
     would, if the resulting plan were then terminated, receive a benefit
     immediately after the merger, consolidation, or transfer which is equal to
     or greater than the benefit he or she would have been entitled to receive
     immediately before the merger, consolidation, or transfer if the Plan had
     then terminated.

          13.3 Additional Participating Companies. If any company is or becomes
     a subsidiary of or associated with the Company, Tandem may include the
     employees of that subsidiary or associated company in the membership of the
     Plan upon appropriate action by that company necessary to adopt the Plan.

          13.4 Termination of Plan. Tandem may terminate the

                                       53
<PAGE>   54

     Plan or completely discontinue contributions under the Plan for any reason
     at any time. In case of termination or partial termination of the Plan, or
     complete discontinuance of Company contributions to the Plan, the rights of
     affected Members to their Accounts under the Plan as of the date of the
     termination or discontinuance shall be nonforfeitable. The total amount in
     each member's Accounts shall be distributed, as Tandem shall direct, to the
     Member or for the Member's benefit or continued in trust for his or her
     benefit until distributed in accordance with the terms of the Plan.

          IN WITNESS WHEREOF, Tandem has caused this Plan document to be
     executed by the undersigned as of the 9th day of April 1993. 

                                     TANDEM COMPUTERS INCORPORATED  
                                                                    
                                     By: /s/                        
                                        --------------------------- 
                                        Vice-President and          
                                        General Counsel             
                                                                    
                                     By: /s/                        
                                        --------------------------- 
                                        Senior Vice President and   
                                        Chief Financial Officer     

                                       54
<PAGE>   55



                                   APPENDIX A


                      MERGER OF INTEGRATED TECHNOLOGY, INC.

                       EMPLOYEE SAVINGS & INVESTMENT PLAN

                                 INTO THIS PLAN

          A.1 Merger of ITI Plan. Effective as of the date designated by Tandem
     (the "Mercier Date"), the Integrated Technology, Inc. Employee Savings &
     Investment Plan (the "ITI Plan") is merged into and shall be part of this
     Plan and shall be governed by this document and the Trust Agreement. As of
     the Merger Date, all assets of the ITI Plan shall become assets of this
     Plan and may be used to pay all benefits provided under this Plan.

          A.2 Continuation of Participation. All individuals who are
     Participants, pursuant to Section 2.3 of the ITI Plan, in the ITI Plan as
     of January 1, 1989 ("ITI Transferees") shall become Members in this Plan as
     of January 1, 1989. All other employees of Integrated Technology, Inc.
     ("ITI") shall be eligible to participate in this Plan as provided in
     Article 2. Each ITI Transferee may make an election before January 1, 1989
     to have his or her Compensation paid with respect to payroll periods
     beginning on or after January 1, 1989 reduced, in accordance with Section
     3.1, and contributed to the Plan as Deferred Contributions. "Salary
     Deferral Elections" made pursuant to Section 3.1 of the ITI Plan shall not
     apply to Compensation paid with respect to payroll periods beginning on or
     after January 1, 1989.

          A.3 ITI Accounts

               (a) The amount credited, as of the Merger Date, 

                                       55
<PAGE>   56

     to the "Account" (as defined in Section 1.1 of the ITI Plan) of each ITI
     Transferee under the ITI Plan shall be credited to a special account(the
     "ITI Account") for the ITI Transferee under this Plan. The ITI Account
     shall be an Account, within the meaning of Section 1.1, of the ITI
     Transferee. All amounts credited to an ITI Transferee's ITI Account shall
     be 100% vested.

               (b) Each ITI Transferee shall make an election in accordance with
     Section 4.2 (relating to investment elections), effective as of the Merger
     Date, to have his or her ITI Account and amounts credited to his or her
     other Accounts invested in one or more of the Funds. Thereafter, this
     investment election may be changed as provided in Section 4.4 (relating to
     changes in investment elections).

          A.4 Distributions, Withdrawals And Loans From ITI Accounts

               (a) General Rule. Except as otherwise provided in this Section
     A.4 of Appendix A, all distributions, withdrawals and loans made an or
     after the Merger Date from an ITI Transferee's Accounts shall be made in
     accordance with the other provisions of the Plan.

               (b) Death Distributions. If an ITI Transferee dies before the
     first date for which distribution of his or her ITI Account would have
     commenced, the entire balance of his or her ITI Account, as determined on
     the Valuation Date immediately preceding the date of the Participant's
     death, shall be distributed as follows:

                    (1) Except to the extent provided in paragraph (2) below of
     this Section A.4(b), the balance of the ITI Transferee's ITI Account shall
     be paid to the Beneficiary or Beneficiaries designated by the ITI
     Transferee. Payment of the ITI Account shall begin as soon as practicable
     after Tandem receives proof of death and evidence of right to payment.

                                       56
<PAGE>   57

                    (2) If an ITI Transferee is married at the time of his or
     her death, the Member's spouse shall receive a Qualified Preretirement
     Survivor Annuity unless the ITI Transferee has effectively waived the
     Qualified Preretirement Survivor Annuity in accordance with paragraph (4)
     below of this Section A.4(b). A "Qualified Preretirement Survivor Annuity"
     is an annuity making monthly payments for the life of the ITI Transferee's
     spouse with payments in an amount which can be provided by an annuity
     contract purchased with the ITI Transferee's ITI Account. Payment of the
     Qualified Preretirement Survivor Annuity shall begin as soon as practicable
     after Tandem receives proof of death.

                    (3) Tandem shall provide each ITI Transferee, who has not
     already received such an explanation, with a written explanation of the
     Qualified Preretirement Survivor Annuity, including a general description
     of the optional forms of distribution under the Plan and sufficient
     additional information to explain the relative values of optional forms of
     benefit available under the Plan. The explanation shall be provided within
     whichever of the following periods ends last:

                         (i) The period beginning with the first day of the
     first Plan Year in which the ITI Transferee attains age 32 and ending with
     the last day of the Plan Year preceding the Plan Year in which the ITI
     Transferee attains age 35; 

                         (ii) In the case of an ITI Transferee who becomes a
     Member after the first day of the first Plan Year in which the ITI
     Transferee attains age 32, the period beginning one year before and ending
     12 months after the date the ITI Transferee becomes a Member (or, if
     earlier, the date he or she became a "Participant" in the ITI Plan); or

                         (iii) In the case of an ITI Transferee who separates
     from service before attaining age 35, the period

                                       57
<PAGE>   58

     beginning one year before and ending one year after the ITI Transferee
     separates from service.

                    (4) The ITI Transferee may waive the Qualified Preretirement
     Survivor Annuity in writing. The ITI Transferee's waiver shall not be
     effective unless his or her spouse consents in writing to the waiver and
     the spouse's signature is witnessed by a notary public or the Plan
     representative designated by Tandem. The ITI Transferee may waive the
     Qualified Preretirement Survivor Annuity at the following times after
     receiving the written explanation described in paragraph (3) above of this
     Section A.4(b)

                         (i) on or after the first day of the Plan Year in which
     he or she attains age 35; or

                         (ii) Before the first day of the Plan Year in which he
     or she attains age 35 provided, however, that such waiver shall become
     ineffective on the first day of the Plan Year in which the ITI Transferee
     attains age 35. If the ITI Transferee waiving the Qualified Preretirement
     Survivor Annuity designates someone other than his or her spouse as a
     primary Beneficiary, the ITI Transferee's waiver must specify the nonspouse
     primary Beneficiaries and the spouse's consent must acknowledge this
     designation. The ITI Transferee may not change the designated nonspouse
     Beneficiary without his or her spouse's further written consent.

                    5. If the ITI Transferee is not married at death or if he or
     she has waived the Qualified Preretirement Survivor Annuity, with his or
     her spouse's written consent, in accordance with paragraph (4) of this
     Section A.4(b), then payment of his or her ITI Account shall be made to his
     or her Beneficiary or Beneficiaries in the form of a lump sum payment not
     later than five years after the death of the ITI Participant. The
     Beneficiary may elect in writing to receive

                                       58
<PAGE>   59

     payment in the form of a 5-Year Certain Annuity, as defined in section
     A.4(c)(2)(iii) below, commencing within one year of the ITI Transferee's
     death. If the Beneficiary receiving the lump sum payment or 5-Year Certain
     Annuity is the spouse of the ITI Transferee, the spouse may elect to delay
     the commencement of such distribution until a date not later than the date
     on which the ITI Transferee would have attained age 70-1/2.

               (c) Distributions to ITI Transferees. Subject to Section 8.2,
     following termination of employment, distributions of an ITI Transferee's
     ITI Account shall be made to the ITI Transferee as follows. The monthly
     amount of the distributions to the ITI Transferee and his or her
     Beneficiary shall be that amount provided under an annuity contract
     purchased with the entire balance of the ITI Transferee's ITI Account.

                    (1) Normal Forms. Unless the III Transferee elects otherwise
     in accordance with Section A.4(c)(3) below, his or her ITI Account shall be
     paid:

                         (i) If the ITI Transferee is not married, as a Life
     Annuity; or

                         (ii) If the ITI Transferee is married, as a Qualified
     Joint and Survivor Annuity. A "Qualified Joint and Survivor Annuity" is a
     50% Contingent Annuity (as described in Section A.4(c)(2)(v)below) with the
     ITI Transferee's spouse as the contingent annuitant.

                    (2) Optional Forms. If the ITI Transferee's spouse consents,
     in accordance with paragraph (3) below of this section A.4(c), the ITI
     Transferee's ITI Account shall be distributed in whichever of the following
     forms is elected by the ITI Transferee.

                         (i) A "Life Annuity" shall pay a monthly benefit for
     the life of the ITI Transferee.

                                       59
<PAGE>   60

                         (ii) A "5-Year or 10-Year Certain Life Annuity" shall
     pay a monthly benefit for the life of the ITI Transferee with a guarantee
     that either 60 or 120 (as elected by the ITI Transferee) monthly payments
     will be made to the ITI Transferee. If the ITI Transferee dies before
     receiving all of the 60 or 120 (as appropriate) guaranteed monthly
     payments, the balance of the guaranteed payments shall be made to his or
     her Beneficiary. If no Beneficiary is then living, a single sum payment
     equivalent to the remaining guaranteed payments shall be paid to the ITI
     Transferee's executors or administrators. If the Beneficiary dies before
     receiving the balance of the guaranteed payments, a single sum payment
     equivalent to the remaining guaranteed payments shall be paid to the
     Beneficiary's executors or administrators.

                         (iii) A "Year Certain Annuity" shall pay a specified
     number of monthly payments (as elected by the ITI Transferee). If the ITI
     Transferee dies before receiving all of the monthly payments, the remainder
     of the payments shall be paid to his or her Beneficiary or, if there is no
     Beneficiary then living, to the ITI Transferee's executors or
     administrators in a single payment equivalent to the remaining monthly
     payments. If the Beneficiary of an ITI Transferee dies before receiving all
     of the remaining monthly payments, a single payment equivalent to the
     remaining payments shall be made to the Beneficiary's executors or
     administrators.

                         (iv) A "Full Cash Refund Life Annuity" shall pay
     monthly payments for the ITI Transferee's life. If the ITI Transferee dies
     before receiving monthly payments which sum to an amount equal to the net
     single premium used to purchase the annuity contract, then the excess of
     such premium over the sum of the monthly payments paid to the ITI
     Transferee shall be paid in a single payment to his or her Beneficiary.

                                       60
<PAGE>   61

                         (v) A "Contingent Joint and Survivor Annuity" shall pay
     monthly payments for the life of the ITI Transferee and monthly payments to
     the ITI Transferee's Beneficiary (if the Beneficiary is then living),
     commencing on the first day of the month following the month in which the
     ITI Transferee dies. If the Beneficiary is the ITI Transferee's spouse, the
     monthly payments to the Beneficiary may be equal to 100%, 66-2/3% or 50%,
     as elected by the ITI Transferee, of the ITI Transferee's monthly payments.
     If the Beneficiary is not the ITI Transferee's spouse, then the ITI
     Transferee may only elect that the Beneficiary receive monthly payments
     equal to 50% of the amount of the ITI Transferee's monthly payments. If the
     Beneficiary dies before monthly payments have started to the ITI
     Transferee, the ITI Transferee may elect (with spousal consent, if
     necessary, as provided in Section A.4(C)(3)) another form of payment. If
     the Beneficiary dies after monthly payments have begun to the ITI
     Transferee, payments shall cease upon the death of the ITI Transferee. 

                         (vi) A "Lump Sum" shall pay in one payment the entire
     balance of the ITI Transferee's ITI Account.

                    (3) Election of Optional Forms of Payment. If an ITI
     Transferee wishes to elect one of the optional forms of payment provided
     under Section A.4(c)(2) above in lieu of the normal form of payment
     provided under Section A.4(c)(1) above, Tandem shall provide him or her,
     within a reasonable time before the first day for which payments will be
     made, and his or her spouse (if any) with a written explanation of the
     terms and conditions of the normal form of payment, the ITI Transferee's
     right to waive and the effect of such waiver of the normal form of payment,
     the right of the spouse (if any) of the ITI Transferee to refuse to consent
     to the waiver and the right of the ITI Transferee to revoke the waiver and
     the effect of such

                                     61
<PAGE>   62

     revocation. Within the 90-day period proceeding the first day for which
     payments would be made to the ITI Transferee, the ITI Transferee may waive
     in writing the normal form of payment. If the ITI Transferee is married at
     the time payments under an optional form of payment would begin, the ITI
     Transferee's waiver shall not be effective unless the ITI Transferee's
     spouse consents in writing to the waiver of the normal form of payment. An
     ITI Transferee's designation of someone other than his or her spouse as his
     or her Beneficiary shall not be effective unless the ITI Transferee's
     spouse has consented in writing to the designation of that Beneficiary.

                    (4) Timing of Distributions.

                         (i) Subject to Section 8.2, distribution of an ITI
     Transferee's ITI Account shall commence on or after the later of the date
     the ITI Transferee attains age 65 or terminates employment. The ITI
     Transferee may elect to delay commencement of the distribution until after
     this date but distribution of his or her ITI Account shall commence not
     later than April 1 of the calendar year following the date the ITI
     Transferee attains age 70-1/2.

                         (ii) If an ITI Transferee dies after distribution of
     his or her ITI Account has begun, the remaining payments (if any) due to
     his or her Beneficiary shall be paid at least as rapidly as under the
     method of distribution begun prior to the ITI Transferee's death.

                    (d) Withdrawals. An ITI Transferee may not make a withdrawal
     under Article 6 from his or her ITI Account unless his or her spouse
     consents in writing, as provided under Section A.4(c)(3), to the withdrawal



                                       62

<PAGE>   63











              TANDEM COMPUTERS, INCORPORATED 401(K) INVESTMENT PLAN

                                    AMENDMENT



          Effective as of January 1, 1993, the Tandem Computers, Inc. 401(k)
     investment Plan shall be amended as follows:

     1.   Section 1.10(b) shall read as follows:

               (b) The annual Compensation of each Employee taken into account
     for determining all benefits provided under the Plan for any Plan Year
     shall not exceed the amount prescribed under section 401(a)(17) of the
     Code, as adjusted from time to time.

                         (i) If Compensation is to be determined on a period of
     time that contains fewer than 12 calendar months, the annual Compensation
     limit is an amount equal to the annual Compensation limit for the calendar
     year in which the Compensation period begins, multiplied by the ratio
     obtained by dividing the number of full months in the period by 12.

  
                                     63
<PAGE>   64

                         (ii) In determining the Compensation of a Member for
     purposes of the limitation under Code section 401(a)(17), the rules of
     section 414(q)(6) of the Code shall apply, except in applying such rules,
     the term "family' shall include only the spouse of the Member and any
     lineal descendants of the Member who have not attained age 19 before the
     close of the Plan Year.

                         (iii) If, as a result of the application of such rules
     the adjusted Code section 401(a)(17) limitation is exceeded, then the
     limitation shall be prorated among the affected individuals in proportion
     to each such individual's Compensation as determined under this section
     prior to the application of this limitation.

                         (iv) If Compensation for any prior Plan Year is taken
     into account in determining a Member's allocations or benefits for the
     current Plan Year, the Compensation for such prior Plan Year is subject to
     the applicable annual Compensation limit in effect for that prior Plan
     Year.

2.   Section 1.26(f) shall read as follows:

               (f) For the purpose of defining a Highly Compensated Employee,
     the determination year shall be the Plan Year and the look-back year shall
     be the calendar year.

3.   Section 8.2 shall read as follows:

          8.2 Method of Distribution. The balance to the credit of a Member's
     Accounts shall be made in one single sum as soon as practicable after the
     date of termination of employment, and except as provided in this Section
     8.2 and subject to the provisions of Section 8.3, not later than the 60th
     day after the close of the Plan Year in which the Member's termination of
     employment occurs. No payment will be made following termination of
     employment unless the Member (or if applicable, the Member's Beneficiary)
     consents in writing. If a Member (or if applicable, his or her Beneficiary
     fails to consent in writing, the Member's distribution will be deferred
     until the date which is the Member's Normal Retirement Date under the Plan,
     or such earlier date of distribution to which the Member (or if applicable,
     his or her Beneficiary) consents. Distributions may be in the form of a
     single sum payment or in installments over a fixed period of years as
     elected by the Member (or if applicable, his or her Beneficiary). Such

                                       64
<PAGE>   65

     fixed period of years shall not exceed the maximum period permitted by
     section 401(a)(9) of the Code and shall be determined in a manner that
     satisfies Treasury Regulation 1.40(a)(9)-2, Q&A 4(a). Distribution of a
     Member's Accounts shall begin not later than April 1 of the calendar year
     following the calendar year in which he or she attains age 70-1/2.

          If a Member dies after distribution of his or her Accounts is
     considered to have commenced in accordance with Code section 401(a)(9) and
     the regulations thereunder, upon the death of the Member his or her
     remaining Accounts will be distributed at least as rapidly as under the
     method of distribution being used as of the date of the Member's death. If
     a Member dies before distribution of his or her Accounts is considered to
     have commenced in accordance with Code section 401(a)(9) and the
     regulations thereunder, upon the death of the Member his or her remaining
     Accounts will be distributed within 5 years after the Member's death;
     provided, however, that distribution to a designated Beneficiary may be
     made over a period certain not exceeding the life expectancy of the
     Beneficiary, commencing not later than the end of the calendar year
     following the calendar year in which the Member died (or, if the
     Beneficiary is the surviving spouse of the Member, commencing not later
     than the end of the calendar year following the calendar year in which the
     Member would have attained age 70-1/2).


          Any additional Company contributions allocated to the Member for the
     Plan Year in which the Member terminates his or her employment for any
     reason and for which a distribution is requested, or the preceding Year
     Plan, if applicable, shall be paid to the Member (or if applicable, his or
     her Beneficiary) as soon as practicable after the contributions have been
     made, subject to the provisions of Section 8.3, if applicable.

     4.   Appendix B shall be amended to read as attached hereto.

                                            TANDEM COMPUTERS INCORPORATED

                                            By:   /s/ 
                                               --------------------------
                                            Its: Senior Vice President
                                                 and Chief Financial Officer
                                       65
<PAGE>   66


                                   APPENDIX B

                     MERGER OF TANDEM COMPUTERS INCORPORATED
                          EMPLOYEE STOCK OWNERSHIP PLAN
                                 INTO THIS PLAN

B.1               INTRODUCTION.

         As of September 30, 1993, the active operation of the Tandem Computers
Incorporated Employee Stock Ownership Plan (the "ESOP") was terminated and all
members of the ESOP were fully vested in their ESOP accounts. No contributions
were made to the ESOP after June 30, 1993. As of the date a final accounting of
members, accounts under the ESOP is completed: (i) the shares of Tandem Stock
in the ESOP suspense account will be exchanged at fair market value for the
debt owed to Tandem by the ESOP trust, (ii) the remaining debt owed to Tandem
by the ESOP trust will be canceled, (iii) the ESOP will be converted from a
stock bonus plan into a profit sharing plan and (iv) the ESOP will be merged
into this Plan.

         This Appendix B is intended to protect the accrued benefits of the 
ESOP members following the merger of the ESOP into the Plan, in accordance with
Section 411(d)(6) of the Code, and to set forth any special requirements
arising out of the merger. This Appendix B is part of the Plan and shall be
administered in accordance with the provisions thereof, except as expressly
provided herein. Capitalized terms used in this Appendix B shall have the same
meanings given to such terms in the Plan or under Section B.7 below.

B.2               PARTICIPATION.

         Each individual who was a member of the ESOP on the merger date set 
forth above shall be an Appendix B Participant on such date. In addition, a
former ESOP member shall become an Appendix B Participant when any amounts are
credited to his or her ESOP Transfer Account pursuant to Section B.4 below.

         An individual's participation in this Appendix B shall terminate when
he or she no longer has any amount credited to an ESOP Transfer Account.

B.3               ACCOUNTS.

         An "ESOP Transfer Account" shall be established for

                                       66
<PAGE>   67


each Appendix B Participant to hold any amounts that were in his or her account
under the ESOP and that were transferred to this Plan and any amounts that are
credited to such account pursuant to Section B.4 below, plus earnings thereon.

B.4             REEMPLOYMENT OF FORMER ESOP MEMBERS.

           If (i) an ESOP member's employment with an Affiliated Company 
terminated when the ESOP member was less than 100% vested in his or her ESOP
account, (ii) the ESOP member is reemployed by an Affiliated Company after he
or she received a distribution (or a deemed distribution) of his or her vested
ESOP account but prior to incurring Permanent Service Break, and (iii) the
former ESOP member pays to the Plan the amount of his or her previous
distribution from the ESOP before incurring a Permanent Service Break and
within five years following reemployment, then an ESOP Transfer Account shall
be established for such former ESOP member. The ESOP Transfer Account shall be
credited with the amounts paid to the Plan by the former ESOP member pursuant
to this Section B.4 and, by payment of an additional contribution by the
Company, with the amount that was forfeited from the ESOP account of the former
ESOP member upon the previous distribution. An Appendix B Participant shall be
fully vested in any amounts credited to his or her ESOP Transfer Account
pursuant to this Section B.4.

B.5           WITHDRAWALS, DISTRIBUTIONS AND LOANS FROM ESOP TRANSFER ACCOUNT.

           For purposes of Article VI of the Plan (withdrawals while still 
employed), Article VII (Loans to Members) and Article VIII (Distribution of
Accounts), an Appendix B Participant's ESOP Transfer Account shall be treated
as a part of a Member's Accounts; provided however, that distributions from a
Member's ESOP Transfer Account shall be made in a single distribution
consisting of whole shares of Tandem Stock with the value of any fractional
share paid in cash.

B.6             INVESTMENTS.

           A Participant's ESOP Transfer Account shall be invested primarily in
shares of Tandem Stock. In accordance with procedures established by Tandem, an
Appendix B Participant may be entitled to direct the investment of his or her
ESOP Transfer Account among such investments as may be made available under the
Plan. In accordance with procedures established by Tandem, an Appendix B
Participant's election to direct the 

                                       67
<PAGE>   68

investment of his or her ESOP Transfer Account may be treated as an irrevocable
election by the Participant to transfer those amounts credited to the ESOP
Transfer Account over which an investment direction is made to the Company
Account under the Plan.

B.7               DEFINITIONS.

          The following definitions shall apply for purposes of this Appendix B.

          "Appendix B Participant" means an individual who participates in this
     Appendix B pursuant to Section B.2 above.

          "ESOP Transfer Account" means the account established under Section
     B.3 above.

          "One Year Break in Service" means a 12 consecutive month break in a
     Period of Service, as such term is defined in Section 11.3 of the Plan.

          "Permanent Service Break" means five consecutive one Year Breaks in
     Service.

          "Tandem Stock" means the shares of common stock issued by Tandem.

                                       68


<PAGE>   1



                                                                     Exhibit 5.1




                                December 31, 1997


         Compaq Computer Corporation
         20555 S.H. 249
         Houston, Texas 77070

         Ladies and Gentlemen:

                  I am the Vice President and Associate General Counsel of
         Compaq Computer Corporation ("Compaq") and have acted in such capacity
         in connection with Compaq's Registration Statement on Form S-8 to
         register under the Securities Act of 1933, as amended, the offer and
         sale of shares of Compaq's Common Stock ("Shares") pursuant to the
         Tandem Computers Incorporated 401(k) Investment Plan. In connection
         therewith, I (or attorneys under my supervision) have examined
         originals or copies, certified or otherwise identified to my
         satisfaction, of such documents, corporate records, certificates of
         public officials and other instruments as I have deemed necessary for
         the purpose of this opinion.

                  Upon the basis of the foregoing, I am of the opinion that the
         Shares have been duly authorized and, when and to the extent issued for
         adequate consideration therefor in accordance with the Plan, will be
         validly issued, fully paid and nonassessable.

                  I consent to the filing of this opinion as Exhibit 5.1 to the
         Registration Statement.

                                              Very truly yours,

                                              /s/ Linda S. Auwers

                                              Linda S. Auwers
                                              Vice President and
                                              Associate General Counsel





<PAGE>   1


                                                                   Exhibit 23.2


               CONSENT OF ERNST & YOUNG LLP, INDEPENDENT AUDITORS


We consent to the incorporation by reference in the Registration Statement (Form
S-8) of Compaq Computer Corporation pertaining to Tandem Computers Incorporated
401(k) Investment Plan of our report dated May 8, 1997, with respect to the
financial statements and schedules of Tandem Computers Incorporated 401(k)
Investment Plan included in the Annual Report (Form 11-K) for the year ended
December 31, 1996.


/s/ Ernst & Young LLP
Ernst & Young LLP

San Jose, California
December 24, 1997



<PAGE>   1


                                                                    Exhibit 23.3


                       CONSENT OF INDEPENDENT ACCOUNTANTS


We hereby consent to the incorporation by reference in the Registration
Statement on Form S-8 of Compaq Computer Corporation of our report dated January
21, 1997, except as to Note 12, which is as of November 21, 1997, which appears
in the Current Report on Form 8-K dated November 21, 1997.


/s/ PRICE WATERHOUSE LLP
PRICE WATERHOUSE LLP

Houston, Texas
December 31, 1997




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